70040856 has 16 divisors (see below), whose sum is σ = 175102200. Its totient is φ = 23346944.

The previous prime is 70040843. The next prime is 70040863. The reversal of 70040856 is 65804007.

It is a happy number.

It is a congruent number.

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, 1459161 + ... + 1459208.

Almost surely, 2^70040856 is an apocalyptic number.

It is an amenable number.

70040856 is an abundant number, since it is smaller than the sum of its proper divisors (105061344).

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

70040856 is a wasteful number, since it uses less digits than its factorization.

70040856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918378 (or 2918374 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70040856 is about 8369.0415221816. The cubic root of 70040856 is about 412.2086949734.

The spelling of 70040856 in words is "seventy million, forty thousand, eight hundred fifty-six".