70256724 has 12 divisors (see below), whose sum is σ = 163932384. Its totient is φ = 23418904.

The previous prime is 70256717. The next prime is 70256729. The reversal of 70256724 is 42765207.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70256729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2927352 + ... + 2927375.

It is an arithmetic number, because the mean of its divisors is an integer number (13661032).

Almost surely, 2^70256724 is an apocalyptic number.

It is an amenable number.

70256724 is an abundant number, since it is smaller than the sum of its proper divisors (93675660).

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

70256724 is a wasteful number, since it uses less digits than its factorization.

70256724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854734 (or 5854732 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 70256724 is about 8381.9284177330. The cubic root of 70256724 is about 412.6317404743.

The spelling of 70256724 in words is "seventy million, two hundred fifty-six thousand, seven hundred twenty-four".