70380856 has 64 divisors (see below), whose sum is σ = 165816000. Its totient is φ = 27828864.

The previous prime is 70380853. The next prime is 70380913. The reversal of 70380856 is 65808307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70380853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34686 + ... + 36658.

It is an arithmetic number, because the mean of its divisors is an integer number (2590875).

Almost surely, 2^70380856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70380856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82908000).

70380856 is an abundant number, since it is smaller than the sum of its proper divisors (95435144).

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

70380856 is a wasteful number, since it uses less digits than its factorization.

70380856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 70380856 is about 8389.3298898065. The cubic root of 70380856 is about 412.8746148149.

The spelling of 70380856 in words is "seventy million, three hundred eighty thousand, eight hundred fifty-six".