33457072 has 20 divisors (see below), whose sum is σ = 70716456. Its totient is φ = 15207680.

The previous prime is 33457049. The next prime is 33457087. The reversal of 33457072 is 27075433.

It is a super-2 number, since 2×33457072² = 2238751333626368, which contains 22 as substring.

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, 94873 + ... + 95224.

Almost surely, 2^33457072 is an apocalyptic number.

It is an amenable number.

33457072 is an abundant number, since it is smaller than the sum of its proper divisors (37259384).

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

33457072 is a wasteful number, since it uses less digits than its factorization.

33457072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190116 (or 190110 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 33457072 is about 5784.2088482350. The cubic root of 33457072 is about 322.2275310175.

The spelling of 33457072 in words is "thirty-three million, four hundred fifty-seven thousand, seventy-two".