33189490 has 16 divisors (see below), whose sum is σ = 60721560. Its totient is φ = 13057920.

The previous prime is 33189487. The next prime is 33189539. The reversal of 33189490 is 9498133.

It can be written as a sum of positive squares in 4 ways, for example, as 11108889 + 22080601 = 3333^2 + 4699^2 .

It is a super-2 number, since 2×33189490² = 2203084492920200, which contains 22 as substring.

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, 26595 + ... + 27814.

Almost surely, 2^33189490 is an apocalyptic number.

33189490 is a deficient number, since it is larger than the sum of its proper divisors (27532070).

33189490 is a wasteful number, since it uses less digits than its factorization.

33189490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54477.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 33189490 is about 5761.0320256010. The cubic root of 33189490 is about 321.3661966680.

The spelling of 33189490 in words is "thirty-three million, one hundred eighty-nine thousand, four hundred ninety".