33257964 has 12 divisors (see below), whose sum is σ = 77601944. Its totient is φ = 11085984.

The previous prime is 33257957. The next prime is 33257981. The reversal of 33257964 is 46975233.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33257964² = 2212184338850592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385737 + ... + 1385760.

Almost surely, 2^33257964 is an apocalyptic number.

It is an amenable number.

33257964 is an abundant number, since it is smaller than the sum of its proper divisors (44343980).

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

33257964 is a wasteful number, since it uses less digits than its factorization.

33257964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771504 (or 2771502 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 33257964 is about 5766.9718223692. The cubic root of 33257964 is about 321.5870508511.

The spelling of 33257964 in words is "thirty-three million, two hundred fifty-seven thousand, nine hundred sixty-four".