1138902912 has 96 divisors (see below), whose sum is σ = 3745525680. Its totient is φ = 325398528.

The previous prime is 1138902889. The next prime is 1138902923. The reversal of 1138902912 is 2192098311.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62553 + ... + 78680.

Almost surely, 2^1138902912 is an apocalyptic number.

1138902912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1138902912 is an abundant number, since it is smaller than the sum of its proper divisors (2606622768).

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

1138902912 is a wasteful number, since it uses less digits than its factorization.

1138902912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141260 (or 141245 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1138902912 is about 33747.6356505163. The cubic root of 1138902912 is about 1044.3087121571.

The spelling of 1138902912 in words is "one billion, one hundred thirty-eight million, nine hundred two thousand, nine hundred twelve".