33274840 has 32 divisors (see below), whose sum is σ = 76895280. Its totient is φ = 12949632.

The previous prime is 33274837. The next prime is 33274841. The reversal of 33274840 is 4847233.

It is a happy number.

It is a super-2 number, since 2×33274840² = 2214429954051200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33274841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9762 + ... + 12721.

Almost surely, 2^33274840 is an apocalyptic number.

It is an amenable number.

33274840 is an abundant number, since it is smaller than the sum of its proper divisors (43620440).

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

33274840 is a wasteful number, since it uses less digits than its factorization.

33274840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22531 (or 22527 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 33274840 is about 5768.4347963724. The cubic root of 33274840 is about 321.6414356733.

The spelling of 33274840 in words is "thirty-three million, two hundred seventy-four thousand, eight hundred forty".