33970220 has 12 divisors (see below), whose sum is σ = 71337504. Its totient is φ = 13588080.

The previous prime is 33970217. The next prime is 33970231. The reversal of 33970220 is 2207933.

It is a self number, because there is not a number n which added to its sum of digits gives 33970220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849236 + ... + 849275.

It is an arithmetic number, because the mean of its divisors is an integer number (5944792).

Almost surely, 2^33970220 is an apocalyptic number.

It is an amenable number.

33970220 is an abundant number, since it is smaller than the sum of its proper divisors (37367284).

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

33970220 is a wasteful number, since it uses less digits than its factorization.

33970220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698520 (or 1698518 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 33970220 is about 5828.3977215012. The cubic root of 33970220 is about 323.8665685393.

The spelling of 33970220 in words is "thirty-three million, nine hundred seventy thousand, two hundred twenty".