33409474 has 12 divisors (see below), whose sum is σ = 58296294. Its totient is φ = 14318304.

The previous prime is 33409469. The next prime is 33409477. The reversal of 33409474 is 47490433.

It can be written as a sum of positive squares in only one way, i.e., 18533025 + 14876449 = 4305^2 + 3857^2 .

It is a super-2 number, since 2×33409474² = 2232385905913352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33409477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170359 + ... + 170554.

Almost surely, 2^33409474 is an apocalyptic number.

33409474 is a deficient number, since it is larger than the sum of its proper divisors (24886820).

33409474 is a wasteful number, since it uses less digits than its factorization.

33409474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340929 (or 340922 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 33409474 is about 5780.0929058277. The cubic root of 33409474 is about 322.0746518787.

The spelling of 33409474 in words is "thirty-three million, four hundred nine thousand, four hundred seventy-four".