33131364 has 48 divisors (see below), whose sum is σ = 93004800. Its totient is φ = 8967456.

The previous prime is 33131323. The next prime is 33131387. The reversal of 33131364 is 46313133.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8784 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (1937600).

Almost surely, 2^33131364 is an apocalyptic number.

It is an amenable number.

33131364 is an abundant number, since it is smaller than the sum of its proper divisors (59873436).

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

33131364 is a wasteful number, since it uses less digits than its factorization.

33131364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792 (or 20790 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

The square root of 33131364 is about 5755.9850590494. The cubic root of 33131364 is about 321.1784801448.

Adding to 33131364 its reverse (46313133), we get a palindrome (79444497).

The spelling of 33131364 in words is "thirty-three million, one hundred thirty-one thousand, three hundred sixty-four".