33328090 has 16 divisors (see below), whose sum is σ = 63148320. Its totient is φ = 12629520.

The previous prime is 33328079. The next prime is 33328093. The reversal of 33328090 is 9082333.

It is a happy number.

It is a super-2 number, since 2×33328090² = 2221523166096200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33328093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87516 + ... + 87895.

It is an arithmetic number, because the mean of its divisors is an integer number (3946770).

Almost surely, 2^33328090 is an apocalyptic number.

33328090 is a deficient number, since it is larger than the sum of its proper divisors (29820230).

33328090 is a wasteful number, since it uses less digits than its factorization.

33328090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175437.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 33328090 is about 5773.0485880512. The cubic root of 33328090 is about 321.8129193748.

The spelling of 33328090 in words is "thirty-three million, three hundred twenty-eight thousand, ninety".