1138948804 has 24 divisors (see below), whose sum is σ = 2351379968. Its totient is φ = 472374720.

The previous prime is 1138948781. The next prime is 1138948829. The reversal of 1138948804 is 4088498311.

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, 655209 + ... + 656944.

Almost surely, 2^1138948804 is an apocalyptic number.

1138948804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1138948804 is an abundant number, since it is smaller than the sum of its proper divisors (1212431164).

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

1138948804 is a wasteful number, since it uses less digits than its factorization.

1138948804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312195 (or 1312193 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1138948804 is about 33748.3155727808. The cubic root of 1138948804 is about 1044.3227387468.

The spelling of 1138948804 in words is "one billion, one hundred thirty-eight million, nine hundred forty-eight thousand, eight hundred four".