1139974736 has 40 divisors (see below), whose sum is σ = 2288604264. Its totient is φ = 549642240.

The previous prime is 1139974709. The next prime is 1139974739. The reversal of 1139974736 is 6374799311.

It can be written as a sum of positive squares in 4 ways, for example, as 294328336 + 845646400 = 17156^2 + 29080^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139974739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58376 + ... + 75416.

Almost surely, 2^1139974736 is an apocalyptic number.

1139974736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1139974736 is an abundant number, since it is smaller than the sum of its proper divisors (1148629528).

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

1139974736 is a wasteful number, since it uses less digits than its factorization.

1139974736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17199 (or 17193 counting only the distinct ones).

The product of its digits is 857304, while the sum is 50.

The square root of 1139974736 is about 33763.5119026443. The cubic root of 1139974736 is about 1044.6362098401.

The spelling of 1139974736 in words is "one billion, one hundred thirty-nine million, nine hundred seventy-four thousand, seven hundred thirty-six".