32989990 has 16 divisors (see below), whose sum is σ = 64780560. Its totient is φ = 11996320.

The previous prime is 32989967. The next prime is 32990003. The reversal of 32989990 is 9998923.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149845 + ... + 150064.

It is an arithmetic number, because the mean of its divisors is an integer number (4048785).

Almost surely, 2^32989990 is an apocalyptic number.

32989990 is a deficient number, since it is larger than the sum of its proper divisors (31790570).

32989990 is a wasteful number, since it uses less digits than its factorization.

32989990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299927.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 32989990 is about 5743.6913217895. The cubic root of 32989990 is about 320.7209979838.

The spelling of 32989990 in words is "thirty-two million, nine hundred eighty-nine thousand, nine hundred ninety".