70489944 has 48 divisors (see below), whose sum is σ = 218184720. Its totient is φ = 20139840.

The previous prime is 70489933. The next prime is 70489957. The reversal of 70489944 is 44998407.

It is a self number, because there is not a number n which added to its sum of digits gives 70489944.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 69427 + ... + 70434.

It is an arithmetic number, because the mean of its divisors is an integer number (4545515).

Almost surely, 2^70489944 is an apocalyptic number.

It is an amenable number.

70489944 is an abundant number, since it is smaller than the sum of its proper divisors (147694776).

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

70489944 is a wasteful number, since it uses less digits than its factorization.

70489944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139880 (or 139873 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 70489944 is about 8395.8289644323. The cubic root of 70489944 is about 413.0878187009.

The spelling of 70489944 in words is "seventy million, four hundred eighty-nine thousand, nine hundred forty-four".