623126064 has 80 divisors (see below), whose sum is σ = 1759530240. Its totient is φ = 188455680.

The previous prime is 623126059. The next prime is 623126099. The reversal of 623126064 is 460621326.

It is a super-2 number, since 2×623126064² = 776572183272264192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398917 + ... + 400475.

It is an arithmetic number, because the mean of its divisors is an integer number (21994128).

Almost surely, 2^623126064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623126064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879765120).

623126064 is an abundant number, since it is smaller than the sum of its proper divisors (1136404176).

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

623126064 is a wasteful number, since it uses less digits than its factorization.

623126064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 623126064 is about 24962.4931447161. The cubic root of 623126064 is about 854.1326150989.

The spelling of 623126064 in words is "six hundred twenty-three million, one hundred twenty-six thousand, sixty-four".