33275440 has 40 divisors (see below), whose sum is σ = 84400848. Its totient is φ = 12099840.

The previous prime is 33275393. The next prime is 33275453. The reversal of 33275440 is 4457233.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33275440² = 2214509814387200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33275399 and 33275408.

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, 18027 + ... + 19786.

Almost surely, 2^33275440 is an apocalyptic number.

It is an amenable number.

33275440 is an abundant number, since it is smaller than the sum of its proper divisors (51125408).

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

33275440 is a wasteful number, since it uses less digits than its factorization.

33275440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37837 (or 37831 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 33275440 is about 5768.4868033133. The cubic root of 33275440 is about 321.6433689027.

The spelling of 33275440 in words is "thirty-three million, two hundred seventy-five thousand, four hundred forty".