70312928 has 24 divisors (see below), whose sum is σ = 158204592. Its totient is φ = 30134016.

The previous prime is 70312919. The next prime is 70312973. The reversal of 70312928 is 82921307.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 70312894 and 70312903.

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 3 ways as a sum of consecutive naturals, for example, 156725 + ... + 157172.

It is an arithmetic number, because the mean of its divisors is an integer number (6591858).

Almost surely, 2^70312928 is an apocalyptic number.

It is an amenable number.

70312928 is an abundant number, since it is smaller than the sum of its proper divisors (87891664).

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

70312928 is a wasteful number, since it uses less digits than its factorization.

70312928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313914 (or 313906 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 70312928 is about 8385.2804365746. The cubic root of 70312928 is about 412.7417435767.

It can be divided in two parts, 703 and 12928, that added together give a palindrome (13631).

The spelling of 70312928 in words is "seventy million, three hundred twelve thousand, nine hundred twenty-eight".