1139602816 has 32 divisors (see below), whose sum is σ = 2476696680. Its totient is φ = 518000640.

The previous prime is 1139602757. The next prime is 1139602817. The reversal of 1139602816 is 6182069311.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139602817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403281 + ... + 406096.

Almost surely, 2^1139602816 is an apocalyptic number.

1139602816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1139602816 is an abundant number, since it is smaller than the sum of its proper divisors (1337093864).

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

1139602816 is an equidigital number, since it uses as much as digits as its factorization.

1139602816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809402 (or 809390 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1139602816 is about 33758.0037324484. The cubic root of 1139602816 is about 1044.5225923050.

The spelling of 1139602816 in words is "one billion, one hundred thirty-nine million, six hundred two thousand, eight hundred sixteen".