70442656 has 24 divisors (see below), whose sum is σ = 139212864. Its totient is φ = 35087040.

The previous prime is 70442651. The next prime is 70442663. The reversal of 70442656 is 65624407.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70442651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4611 + ... + 12733.

It is an arithmetic number, because the mean of its divisors is an integer number (5800536).

Almost surely, 2^70442656 is an apocalyptic number.

It is an amenable number.

70442656 is a deficient number, since it is larger than the sum of its proper divisors (68770208).

70442656 is a wasteful number, since it uses less digits than its factorization.

70442656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8396 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 70442656 is about 8393.0123316959. The cubic root of 70442656 is about 412.9954250656.

The spelling of 70442656 in words is "seventy million, four hundred forty-two thousand, six hundred fifty-six".