2190239156 has 24 divisors (see below), whose sum is σ = 4521785856. Its totient is φ = 908393760.

The previous prime is 2190239131. The next prime is 2190239171. The reversal of 2190239156 is 6519320912.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260791 + ... + 1262526.

It is an arithmetic number, because the mean of its divisors is an integer number (188407744).

Almost surely, 2^2190239156 is an apocalyptic number.

It is an amenable number.

2190239156 is an abundant number, since it is smaller than the sum of its proper divisors (2331546700).

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

2190239156 is a wasteful number, since it uses less digits than its factorization.

2190239156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523359 (or 2523357 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 2190239156 is about 46799.9909829051. The cubic root of 2190239156 is about 1298.6651299910.

The spelling of 2190239156 in words is "two billion, one hundred ninety million, two hundred thirty-nine thousand, one hundred fifty-six".