1013944464 has 240 divisors, whose sum is σ = 3272540544. Its totient is φ = 290304000.

The previous prime is 1013944457. The next prime is 1013944483. The reversal of 1013944464 is 4644493101.

It is a happy number.

1013944464 is a `hidden beast` number, since 101 + 3 + 94 + 4 + 464 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4805319 + ... + 4805529.

Almost surely, 2^1013944464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013944464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636270272).

1013944464 is an abundant number, since it is smaller than the sum of its proper divisors (2258596080).

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

1013944464 is a wasteful number, since it uses less digits than its factorization.

1013944464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1013944464 is about 31842.4946258926. The cubic root of 1013944464 is about 1004.6267151596.

The spelling of 1013944464 in words is "one billion, thirteen million, nine hundred forty-four thousand, four hundred sixty-four".