622346440 has 32 divisors (see below), whose sum is σ = 1406160000. Its totient is φ = 247893184.

The previous prime is 622346429. The next prime is 622346447. The reversal of 622346440 is 44643226.

It is not an unprimeable number, because it can be changed into a prime (622346447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22990 + ... + 42109.

It is an arithmetic number, because the mean of its divisors is an integer number (43942500).

Almost surely, 2^622346440 is an apocalyptic number.

It is an amenable number.

622346440 is an abundant number, since it is smaller than the sum of its proper divisors (783813560).

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

622346440 is a wasteful number, since it uses less digits than its factorization.

622346440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65349 (or 65345 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 622346440 is about 24946.8723490541. The cubic root of 622346440 is about 853.7762505085.

Adding to 622346440 its reverse (44643226), we get a palindrome (666989666).

The spelling of 622346440 in words is "six hundred twenty-two million, three hundred forty-six thousand, four hundred forty".