33216474 has 8 divisors (see below), whose sum is σ = 66432960. Its totient is φ = 11072156.

The previous prime is 33216473. The next prime is 33216481. The reversal of 33216474 is 47461233.

It is a sphenic number, since it is the product of 3 distinct primes.

33216474 is an admirable number.

It is a super-2 number, since 2×33216474² = 2206668289985352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33216473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768034 + ... + 2768045.

It is an arithmetic number, because the mean of its divisors is an integer number (8304120).

Almost surely, 2^33216474 is an apocalyptic number.

33216474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33216474 is a wasteful number, since it uses less digits than its factorization.

33216474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536084.

The product of its digits is 12096, while the sum is 30.

The square root of 33216474 is about 5763.3734912810. The cubic root of 33216474 is about 321.4532663637.

The spelling of 33216474 in words is "thirty-three million, two hundred sixteen thousand, four hundred seventy-four".