1020013944 has 32 divisors (see below), whose sum is σ = 2574798720. Its totient is φ = 336702816.

The previous prime is 1020013937. The next prime is 1020013961. The reversal of 1020013944 is 4493100201.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 203842 + ... + 208785.

It is an arithmetic number, because the mean of its divisors is an integer number (80462460).

Almost surely, 2^1020013944 is an apocalyptic number.

It is an amenable number.

1020013944 is an abundant number, since it is smaller than the sum of its proper divisors (1554784776).

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

1020013944 is a wasteful number, since it uses less digits than its factorization.

1020013944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412739 (or 412735 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1020013944 is about 31937.6571463844. The cubic root of 1020013944 is about 1006.6272965807.

The spelling of 1020013944 in words is "one billion, twenty million, thirteen thousand, nine hundred forty-four".