622528240 has 20 divisors (see below), whose sum is σ = 1447378344. Its totient is φ = 249011264.

The previous prime is 622528223. The next prime is 622528259. The reversal of 622528240 is 42825226.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 3890722 + ... + 3890881.

Almost surely, 2^622528240 is an apocalyptic number.

It is an amenable number.

622528240 is an abundant number, since it is smaller than the sum of its proper divisors (824850104).

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

622528240 is a wasteful number, since it uses less digits than its factorization.

622528240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781616 (or 7781610 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 622528240 is about 24950.5158263311. The cubic root of 622528240 is about 853.8593775264.

The spelling of 622528240 in words is "six hundred twenty-two million, five hundred twenty-eight thousand, two hundred forty".