623502040 has 32 divisors (see below), whose sum is σ = 1603291680. Its totient is φ = 213772032.

The previous prime is 623502023. The next prime is 623502053. The reversal of 623502040 is 40205326.

It is a happy number.

It is a congruent number.

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, 1113117 + ... + 1113676.

It is an arithmetic number, because the mean of its divisors is an integer number (50102865).

Almost surely, 2^623502040 is an apocalyptic number.

It is an amenable number.

623502040 is an abundant number, since it is smaller than the sum of its proper divisors (979789640).

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

623502040 is a wasteful number, since it uses less digits than its factorization.

623502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226811 (or 2226807 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 623502040 is about 24970.0228273824. The cubic root of 623502040 is about 854.3043667539.

Adding to 623502040 its reverse (40205326), we get a palindrome (663707366).

The spelling of 623502040 in words is "six hundred twenty-three million, five hundred two thousand, forty".