752400018 has 12 divisors (see below), whose sum is σ = 1630200078. Its totient is φ = 250800000.

The previous prime is 752400007. The next prime is 752400043. The reversal of 752400018 is 810004257.

752400018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 745126209 + 7273809 = 27297^2 + 2697^2 .

It is a super-2 number, since 2×752400018² = 1132211574172800648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 752399964 and 752400000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20899983 + ... + 20900018.

Almost surely, 2^752400018 is an apocalyptic number.

752400018 is an abundant number, since it is smaller than the sum of its proper divisors (877800060).

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

752400018 is a wasteful number, since it uses less digits than its factorization.

752400018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800009 (or 41800006 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 752400018 is about 27429.9110096989. The cubic root of 752400018 is about 909.5284027461.

The spelling of 752400018 in words is "seven hundred fifty-two million, four hundred thousand, eighteen".