232005990 has 32 divisors (see below), whose sum is σ = 564662016. Its totient is φ = 60996320.

The previous prime is 232005973. The next prime is 232006043. The reversal of 232005990 is 99500232.

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

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 15 ways as a sum of consecutive naturals, for example, 52332 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (17645688).

Almost surely, 2^232005990 is an apocalyptic number.

232005990 is an abundant number, since it is smaller than the sum of its proper divisors (332656026).

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

232005990 is a wasteful number, since it uses less digits than its factorization.

232005990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109004.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 232005990 is about 15231.7428418418. The cubic root of 232005990 is about 614.4686533611.

The spelling of 232005990 in words is "two hundred thirty-two million, five thousand, nine hundred ninety".