32990660 has 12 divisors (see below), whose sum is σ = 69280428. Its totient is φ = 13196256.

The previous prime is 32990651. The next prime is 32990681. The reversal of 32990660 is 6609923.

It can be written as a sum of positive squares in 2 ways, for example, as 19784704 + 13205956 = 4448^2 + 3634^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32990660.

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, 824747 + ... + 824786.

It is an arithmetic number, because the mean of its divisors is an integer number (5773369).

Almost surely, 2^32990660 is an apocalyptic number.

It is an amenable number.

32990660 is an abundant number, since it is smaller than the sum of its proper divisors (36289768).

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

32990660 is a wasteful number, since it uses less digits than its factorization.

32990660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649542 (or 1649540 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 32990660 is about 5743.7496463547. The cubic root of 32990660 is about 320.7231691638.

The spelling of 32990660 in words is "thirty-two million, nine hundred ninety thousand, six hundred sixty".