622141440 has 224 divisors, whose sum is σ = 2047743936. Its totient is φ = 161218560.

The previous prime is 622141439. The next prime is 622141441. The reversal of 622141440 is 44141226.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (622141439) and next prime (622141441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 622141440.

It is not an unprimeable number, because it can be changed into a prime (622141441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7495639 + ... + 7495721.

It is an arithmetic number, because the mean of its divisors is an integer number (9141714).

Almost surely, 2^622141440 is an apocalyptic number.

622141440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023871968).

622141440 is an abundant number, since it is smaller than the sum of its proper divisors (1425602496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622141440 is an equidigital number, since it uses as much as digits as its factorization.

622141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 622141440 is about 24942.7632791557. The cubic root of 622141440 is about 853.6824960008.

Adding to 622141440 its reverse (44141226), we get a palindrome (666282666).

The spelling of 622141440 in words is "six hundred twenty-two million, one hundred forty-one thousand, four hundred forty".