33442664 has 8 divisors (see below), whose sum is σ = 62705010. Its totient is φ = 16721328.

The previous prime is 33442663. The next prime is 33442681. The reversal of 33442664 is 46624433.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 10956100 = 4742^2 + 3310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×33442664² = 2236823550833792, 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 33442664.

It is not an unprimeable number, because it can be changed into a prime (33442663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2090159 + ... + 2090174.

Almost surely, 2^33442664 is an apocalyptic number.

It is an amenable number.

33442664 is a deficient number, since it is larger than the sum of its proper divisors (29262346).

33442664 is a wasteful number, since it uses less digits than its factorization.

33442664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180339 (or 4180335 counting only the distinct ones).

The product of its digits is 41472, while the sum is 32.

The square root of 33442664 is about 5782.9632542495. The cubic root of 33442664 is about 322.1812695388.

The spelling of 33442664 in words is "thirty-three million, four hundred forty-two thousand, six hundred sixty-four".