70404920 has 32 divisors (see below), whose sum is σ = 158792400. Its totient is φ = 28094208.

The previous prime is 70404883. The next prime is 70404931. The reversal of 70404920 is 2940407.

It is a self number, because there is not a number n which added to its sum of digits gives 70404920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16796 + ... + 20564.

Almost surely, 2^70404920 is an apocalyptic number.

It is an amenable number.

70404920 is an abundant number, since it is smaller than the sum of its proper divisors (88387480).

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

70404920 is a wasteful number, since it uses less digits than its factorization.

70404920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4243 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70404920 is about 8390.7639699851. The cubic root of 70404920 is about 412.9216649323.

The spelling of 70404920 in words is "seventy million, four hundred four thousand, nine hundred twenty".