70021264 has 20 divisors (see below), whose sum is σ = 136241280. Its totient is φ = 34862240.

The previous prime is 70021187. The next prime is 70021271. The reversal of 70021264 is 46212007.

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, 5332 + ... + 12979.

It is an arithmetic number, because the mean of its divisors is an integer number (6812064).

Almost surely, 2^70021264 is an apocalyptic number.

It is an amenable number.

70021264 is a deficient number, since it is larger than the sum of its proper divisors (66220016).

70021264 is a wasteful number, since it uses less digits than its factorization.

70021264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558 (or 18552 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 70021264 is about 8367.8709359072. The cubic root of 70021264 is about 412.1702567134.

The spelling of 70021264 in words is "seventy million, twenty-one thousand, two hundred sixty-four".