622640332 has 24 divisors (see below), whose sum is σ = 1127611520. Its totient is φ = 300516480.

The previous prime is 622640311. The next prime is 622640341. The reversal of 622640332 is 233046226.

622640332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 622640332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44578 + ... + 56854.

Almost surely, 2^622640332 is an apocalyptic number.

622640332 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

622640332 is a deficient number, since it is larger than the sum of its proper divisors (504971188).

622640332 is a wasteful number, since it uses less digits than its factorization.

622640332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721 (or 12719 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 622640332 is about 24952.7620114488. The cubic root of 622640332 is about 853.9106228918.

Adding to 622640332 its reverse (233046226), we get a palindrome (855686558).

The spelling of 622640332 in words is "six hundred twenty-two million, six hundred forty thousand, three hundred thirty-two".