1138874932 has 48 divisors (see below), whose sum is σ = 2185045632. Its totient is φ = 516216960.

The previous prime is 1138874929. The next prime is 1138874939. The reversal of 1138874932 is 2394788311.

It is a super-2 number, since 2×1138874932² = 2594072221476009248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138874939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376703 + ... + 1377529.

It is an arithmetic number, because the mean of its divisors is an integer number (45521784).

Almost surely, 2^1138874932 is an apocalyptic number.

It is an amenable number.

1138874932 is a deficient number, since it is larger than the sum of its proper divisors (1046170700).

1138874932 is a wasteful number, since it uses less digits than its factorization.

1138874932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288 (or 1286 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 1138874932 is about 33747.2211004106. The cubic root of 1138874932 is about 1044.3001600681.

It can be divided in two parts, 11388 and 74932, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 1138874932 in words is "one billion, one hundred thirty-eight million, eight hundred seventy-four thousand, nine hundred thirty-two".