2031508890 has 32 divisors (see below), whose sum is σ = 5417357760. Its totient is φ = 541735632.

The previous prime is 2031508811. The next prime is 2031508901. The reversal of 2031508890 is 988051302.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3761784 + ... + 3762323.

It is an arithmetic number, because the mean of its divisors is an integer number (169292430).

Almost surely, 2^2031508890 is an apocalyptic number.

2031508890 is an abundant number, since it is smaller than the sum of its proper divisors (3385848870).

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

2031508890 is a wasteful number, since it uses less digits than its factorization.

2031508890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524123 (or 7524117 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 2031508890 is about 45072.2629784660. The cubic root of 2031508890 is about 1266.5030569691.

The spelling of 2031508890 in words is "two billion, thirty-one million, five hundred eight thousand, eight hundred ninety".