1139904 has 42 divisors (see below), whose sum is σ = 3268980. Its totient is φ = 379776.

The previous prime is 1139869. The next prime is 1139909. The reversal of 1139904 is 4099311.

It is a super-2 number, since 2×1139904² = 2598762258432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1139909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 414 + ... + 1565.

2^1139904 is an apocalyptic number.

It is an amenable number.

1139904 is an abundant number, since it is smaller than the sum of its proper divisors (2129076).

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

1139904 is a wasteful number, since it uses less digits than its factorization.

1139904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1984 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1139904 is about 1067.6628681377. The cubic root of 1139904 is about 104.4614602661.

The spelling of 1139904 in words is "one million, one hundred thirty-nine thousand, nine hundred four".