33620412 has 24 divisors (see below), whose sum is σ = 89654656. Its totient is φ = 9605808.

The previous prime is 33620387. The next prime is 33620413. The reversal of 33620412 is 21402633.

It is a happy number.

It is a super-2 number, since 2×33620412² = 2260664206099488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33620413) 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, 200038 + ... + 200205.

Almost surely, 2^33620412 is an apocalyptic number.

It is an amenable number.

33620412 is an abundant number, since it is smaller than the sum of its proper divisors (56034244).

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

33620412 is a wasteful number, since it uses less digits than its factorization.

33620412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400257 (or 400255 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33620412 is about 5798.3111334250. The cubic root of 33620412 is about 322.7510598374.

The spelling of 33620412 in words is "thirty-three million, six hundred twenty thousand, four hundred twelve".