990609032 has 16 divisors (see below), whose sum is σ = 2122733760. Its totient is φ = 424546704.

The previous prime is 990609013. The next prime is 990609047. The reversal of 990609032 is 230906099.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8844668 + ... + 8844779.

It is an arithmetic number, because the mean of its divisors is an integer number (132670860).

Almost surely, 2^990609032 is an apocalyptic number.

It is an amenable number.

990609032 is an abundant number, since it is smaller than the sum of its proper divisors (1132124728).

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

990609032 is a wasteful number, since it uses less digits than its factorization.

990609032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17689460 (or 17689456 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 990609032 is about 31473.9421108955. The cubic root of 990609032 is about 996.8598269681.

The spelling of 990609032 in words is "nine hundred ninety million, six hundred nine thousand, thirty-two".