33970218 has 32 divisors (see below), whose sum is σ = 72821376. Its totient is φ = 10536768.

The previous prime is 33970217. The next prime is 33970231. The reversal of 33970218 is 81207933.

It is not an unprimeable number, because it can be changed into a prime (33970213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780 + ... + 8432.

It is an arithmetic number, because the mean of its divisors is an integer number (2275668).

Almost surely, 2^33970218 is an apocalyptic number.

33970218 is an abundant number, since it is smaller than the sum of its proper divisors (38851158).

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

33970218 is a wasteful number, since it uses less digits than its factorization.

33970218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 33970218 is about 5828.3975499274. The cubic root of 33970218 is about 323.8665621834.

The spelling of 33970218 in words is "thirty-three million, nine hundred seventy thousand, two hundred eighteen".