623463040 has 32 divisors (see below), whose sum is σ = 1490467860. Its totient is φ = 249384960.

The previous prime is 623463019. The next prime is 623463053. The reversal of 623463040 is 40364326.

It can be written as a sum of positive squares in 2 ways, for example, as 621804096 + 1658944 = 24936^2 + 1288^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486441 + ... + 487720.

Almost surely, 2^623463040 is an apocalyptic number.

It is an amenable number.

623463040 is an abundant number, since it is smaller than the sum of its proper divisors (867004820).

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

623463040 is an equidigital number, since it uses as much as digits as its factorization.

623463040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974180 (or 974168 counting only the distinct ones).

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

The square root of 623463040 is about 24969.2418787596. The cubic root of 623463040 is about 854.2865541604.

The spelling of 623463040 in words is "six hundred twenty-three million, four hundred sixty-three thousand, forty".