32990900 has 36 divisors (see below), whose sum is σ = 72307872. Its totient is φ = 13064160.

The previous prime is 32990891. The next prime is 32990957. The reversal of 32990900 is 909923.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8699 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (2008552).

Almost surely, 2^32990900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32990900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36153936).

32990900 is an abundant number, since it is smaller than the sum of its proper divisors (39316972).

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

32990900 is a wasteful number, since it uses less digits than its factorization.

32990900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 3313 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 32990900 is about 5743.7705385922. The cubic root of 32990900 is about 320.7239468927.

The spelling of 32990900 in words is "thirty-two million, nine hundred ninety thousand, nine hundred".