70442658 has 48 divisors (see below), whose sum is σ = 179315136. Its totient is φ = 19703520.

The previous prime is 70442651. The next prime is 70442663. The reversal of 70442658 is 85624407.

It is a super-2 number, since 2×70442658² = 9924336132209928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11110 + ... + 16257.

It is an arithmetic number, because the mean of its divisors is an integer number (3735732).

Almost surely, 2^70442658 is an apocalyptic number.

70442658 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70442658 is an abundant number, since it is smaller than the sum of its proper divisors (108872478).

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

70442658 is a wasteful number, since it uses less digits than its factorization.

70442658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27399 (or 27396 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 70442658 is about 8393.0124508427. The cubic root of 70442658 is about 412.9954289742.

The spelling of 70442658 in words is "seventy million, four hundred forty-two thousand, six hundred fifty-eight".