1039039872 has 64 divisors (see below), whose sum is σ = 2972267760. Its totient is φ = 319703040.

The previous prime is 1039039867. The next prime is 1039039889. The reversal of 1039039872 is 2789309301.

It is a tau number, because it is divible by the number of its divisors (64).

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, 99079 + ... + 109062.

Almost surely, 2^1039039872 is an apocalyptic number.

1039039872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1039039872 is an abundant number, since it is smaller than the sum of its proper divisors (1933227888).

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

1039039872 is a wasteful number, since it uses less digits than its factorization.

1039039872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208171 (or 208159 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1039039872 is about 32234.1414031768. The cubic root of 1039039872 is about 1012.8475249044.

The spelling of 1039039872 in words is "one billion, thirty-nine million, thirty-nine thousand, eight hundred seventy-two".