70642724 has 12 divisors (see below), whose sum is σ = 127887900. Its totient is φ = 34103328.

The previous prime is 70642709. The next prime is 70642751. The reversal of 70642724 is 42724607.

It can be written as a sum of positive squares in 2 ways, for example, as 12730624 + 57912100 = 3568^2 + 7610^2 .

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, 304379 + ... + 304610.

It is an arithmetic number, because the mean of its divisors is an integer number (10657325).

Almost surely, 2^70642724 is an apocalyptic number.

It is an amenable number.

70642724 is a deficient number, since it is larger than the sum of its proper divisors (57245176).

70642724 is a wasteful number, since it uses less digits than its factorization.

70642724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609022 (or 609020 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 70642724 is about 8404.9226052356. The cubic root of 70642724 is about 413.3860457111.

The spelling of 70642724 in words is "seventy million, six hundred forty-two thousand, seven hundred twenty-four".