622445040 has 240 divisors, whose sum is σ = 2494438560. Its totient is φ = 142248960.

The previous prime is 622445039. The next prime is 622445051. The reversal of 622445040 is 40544226.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 622444995 and 622445013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102900 + ... + 108780.

It is an arithmetic number, because the mean of its divisors is an integer number (10393494).

Almost surely, 2^622445040 is an apocalyptic number.

622445040 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 622445040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247219280).

622445040 is an abundant number, since it is smaller than the sum of its proper divisors (1871993520).

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

622445040 is a wasteful number, since it uses less digits than its factorization.

622445040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 622445040 is about 24948.8484704204. The cubic root of 622445040 is about 853.8213368075.

Adding to 622445040 its reverse (40544226), we get a palindrome (662989266).

The spelling of 622445040 in words is "six hundred twenty-two million, four hundred forty-five thousand, forty".