33630472 has 32 divisors (see below), whose sum is σ = 65656800. Its totient is φ = 16136064.

The previous prime is 33630463. The next prime is 33630479. The reversal of 33630472 is 27403633.

It is a super-2 number, since 2×33630472² = 2262017293885568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33630472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33630479) 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, 19468 + ... + 21124.

It is an arithmetic number, because the mean of its divisors is an integer number (2051775).

Almost surely, 2^33630472 is an apocalyptic number.

It is an amenable number.

33630472 is a deficient number, since it is larger than the sum of its proper divisors (32026328).

33630472 is a wasteful number, since it uses less digits than its factorization.

33630472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 33630472 is about 5799.1785625207. The cubic root of 33630472 is about 322.7832481389.

The spelling of 33630472 in words is "thirty-three million, six hundred thirty thousand, four hundred seventy-two".