1016438844 has 12 divisors (see below), whose sum is σ = 2371690664. Its totient is φ = 338812944.

The previous prime is 1016438821. The next prime is 1016438861. The reversal of 1016438844 is 4488346101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42351607 + ... + 42351630.

Almost surely, 2^1016438844 is an apocalyptic number.

It is an amenable number.

1016438844 is an abundant number, since it is smaller than the sum of its proper divisors (1355251820).

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

1016438844 is a wasteful number, since it uses less digits than its factorization.

1016438844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84703244 (or 84703242 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 1016438844 is about 31881.6380382188. The cubic root of 1016438844 is about 1005.4498597401.

The spelling of 1016438844 in words is "one billion, sixteen million, four hundred thirty-eight thousand, eight hundred forty-four".