2139190320 has 40 divisors (see below), whose sum is σ = 6631490736. Its totient is φ = 570450688.

The previous prime is 2139190301. The next prime is 2139190349. The reversal of 2139190320 is 230919312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2139190320² = 9152270450363404800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4456407 + ... + 4456886.

Almost surely, 2^2139190320 is an apocalyptic number.

2139190320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2139190320 is an abundant number, since it is smaller than the sum of its proper divisors (4492300416).

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

2139190320 is a wasteful number, since it uses less digits than its factorization.

2139190320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8913309 (or 8913303 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2139190320 is about 46251.3818171955. The cubic root of 2139190320 is about 1288.4961984875.

The spelling of 2139190320 in words is "two billion, one hundred thirty-nine million, one hundred ninety thousand, three hundred twenty".