2031539994 has 32 divisors (see below), whose sum is σ = 4924946880. Its totient is φ = 615618000.

The previous prime is 2031539981. The next prime is 2031540023. The reversal of 2031539994 is 4999351302.

2031539994 is a `hidden beast` number, since 20 + 3 + 1 + 539 + 9 + 94 = 666.

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, 1709457 + ... + 1710644.

It is an arithmetic number, because the mean of its divisors is an integer number (153904590).

Almost surely, 2^2031539994 is an apocalyptic number.

2031539994 is an abundant number, since it is smaller than the sum of its proper divisors (2893406886).

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

2031539994 is a wasteful number, since it uses less digits than its factorization.

2031539994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420123 (or 3420117 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 2031539994 is about 45072.6080230554. The cubic root of 2031539994 is about 1266.5095206557.

The spelling of 2031539994 in words is "two billion, thirty-one million, five hundred thirty-nine thousand, nine hundred ninety-four".