1039894368 has 24 divisors (see below), whose sum is σ = 2729722968. Its totient is φ = 346631424.

The previous prime is 1039894363. The next prime is 1039894391. The reversal of 1039894368 is 8634989301.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1039894368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039894363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5416021 + ... + 5416212.

It is an arithmetic number, because the mean of its divisors is an integer number (113738457).

Almost surely, 2^1039894368 is an apocalyptic number.

It is an amenable number.

1039894368 is an abundant number, since it is smaller than the sum of its proper divisors (1689828600).

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

1039894368 is a wasteful number, since it uses less digits than its factorization.

1039894368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832246 (or 10832238 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 1039894368 is about 32247.3931969702. The cubic root of 1039894368 is about 1013.1251007183.

The spelling of 1039894368 in words is "one billion, thirty-nine million, eight hundred ninety-four thousand, three hundred sixty-eight".