1138940304 has 40 divisors (see below), whose sum is σ = 2944290720. Its totient is φ = 379385088.

The previous prime is 1138940293. The next prime is 1138940317. The reversal of 1138940304 is 4030498311.

It is a super-2 number, since 2×1138940304² = 2594370032151224832, which contains 22 as substring.

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, 69859 + ... + 84605.

It is an arithmetic number, because the mean of its divisors is an integer number (73607268).

Almost surely, 2^1138940304 is an apocalyptic number.

It is an amenable number.

1138940304 is an abundant number, since it is smaller than the sum of its proper divisors (1805350416).

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

1138940304 is a wasteful number, since it uses less digits than its factorization.

1138940304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16367 (or 16361 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1138940304 is about 33748.1896403348. The cubic root of 1138940304 is about 1044.3201408058.

The spelling of 1138940304 in words is "one billion, one hundred thirty-eight million, nine hundred forty thousand, three hundred four".