999990232 has 16 divisors (see below), whose sum is σ = 1876442400. Its totient is φ = 499605600.

The previous prime is 999990227. The next prime is 999990239. The reversal of 999990232 is 232099999.

It is a self number, because there is not a number n which added to its sum of digits gives 999990232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999990239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37632 + ... + 58447.

It is an arithmetic number, because the mean of its divisors is an integer number (117277650).

Almost surely, 2^999990232 is an apocalyptic number.

It is an amenable number.

999990232 is a deficient number, since it is larger than the sum of its proper divisors (876452168).

999990232 is a wasteful number, since it uses less digits than its factorization.

999990232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97386 (or 97382 counting only the distinct ones).

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 999990232 is about 31622.6221556657. The cubic root of 999990232 is about 999.9967439894.

The spelling of 999990232 in words is "nine hundred ninety-nine million, nine hundred ninety thousand, two hundred thirty-two".