32990166 has 112 divisors (see below), whose sum is σ = 86408208. Its totient is φ = 9408960.

The previous prime is 32990147. The next prime is 32990171. The reversal of 32990166 is 66109923.

It is a self number, because there is not a number n which added to its sum of digits gives 32990166.

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 1940590 + ... + 1940606.

Almost surely, 2^32990166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32990166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43204104).

32990166 is an abundant number, since it is smaller than the sum of its proper divisors (53418042).

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

32990166 is an equidigital number, since it uses as much as digits as its factorization.

32990166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 32990166 is about 5743.7066429267. The cubic root of 32990166 is about 320.7215683265.

The spelling of 32990166 in words is "thirty-two million, nine hundred ninety thousand, one hundred sixty-six".