33190664 has 32 divisors (see below), whose sum is σ = 70965720. Its totient is φ = 14416896.

The previous prime is 33190639. The next prime is 33190669. The reversal of 33190664 is 46609133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33062500 + 128164 = 5750^2 + 358^2 .

It is a super-2 number, since 2×33190664² = 2203240353521792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33190664.

It is not an unprimeable number, because it can be changed into a prime (33190669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7619 + ... + 11154.

Almost surely, 2^33190664 is an apocalyptic number.

33190664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

33190664 is an abundant number, since it is smaller than the sum of its proper divisors (37775056).

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

33190664 is a wasteful number, since it uses less digits than its factorization.

33190664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809 (or 18805 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 33190664 is about 5761.1339161662. The cubic root of 33190664 is about 321.3699858139.

Adding to 33190664 its reverse (46609133), we get a palindrome (79799797).

The spelling of 33190664 in words is "thirty-three million, one hundred ninety thousand, six hundred sixty-four".