1038387816 has 64 divisors (see below), whose sum is σ = 2888395200. Its totient is φ = 345651264.

The previous prime is 1038387809. The next prime is 1038387817. The reversal of 1038387816 is 6187838301.

1038387816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1038387817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175726 + ... + 181538.

It is an arithmetic number, because the mean of its divisors is an integer number (45131175).

Almost surely, 2^1038387816 is an apocalyptic number.

It is an amenable number.

1038387816 is an abundant number, since it is smaller than the sum of its proper divisors (1850007384).

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

1038387816 is a wasteful number, since it uses less digits than its factorization.

1038387816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655 (or 6645 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1038387816 is about 32224.0254468618. The cubic root of 1038387816 is about 1012.6356076255.

The spelling of 1038387816 in words is "one billion, thirty-eight million, three hundred eighty-seven thousand, eight hundred sixteen".