33621364 has 24 divisors (see below), whose sum is σ = 67941440. Its totient is φ = 14259456.

The previous prime is 33621361. The next prime is 33621383. The reversal of 33621364 is 46312633.

It is a super-2 number, since 2×33621364² = 2260792234440992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33621361) 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, 3474 + ... + 8905.

Almost surely, 2^33621364 is an apocalyptic number.

It is an amenable number.

33621364 is an abundant number, since it is smaller than the sum of its proper divisors (34320076).

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

33621364 is a wasteful number, since it uses less digits than its factorization.

33621364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487 (or 12485 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 33621364 is about 5798.3932257135. The cubic root of 33621364 is about 322.7541061624.

Adding to 33621364 its reverse (46312633), we get a palindrome (79933997).

The spelling of 33621364 in words is "thirty-three million, six hundred twenty-one thousand, three hundred sixty-four".