70304816 has 40 divisors (see below), whose sum is σ = 141679920. Its totient is φ = 33755904.

The previous prime is 70304803. The next prime is 70304827. The reversal of 70304816 is 61840307.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128255 + ... + 128801.

It is an arithmetic number, because the mean of its divisors is an integer number (3541998).

Almost surely, 2^70304816 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 70304816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70839960).

70304816 is an abundant number, since it is smaller than the sum of its proper divisors (71375104).

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

70304816 is a wasteful number, since it uses less digits than its factorization.

70304816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 70304816 is about 8384.7967178698. The cubic root of 70304816 is about 412.7258702995.

The spelling of 70304816 in words is "seventy million, three hundred four thousand, eight hundred sixteen".