709872144 has 20 divisors (see below), whose sum is σ = 1833836496. Its totient is φ = 236624032.

The previous prime is 709872139. The next prime is 709872157. The reversal of 709872144 is 441278907.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 709872096 and 709872105.

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 3 ways as a sum of consecutive naturals, for example, 7394454 + ... + 7394549.

Almost surely, 2^709872144 is an apocalyptic number.

It is an amenable number.

709872144 is an abundant number, since it is smaller than the sum of its proper divisors (1123964352).

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

709872144 is a wasteful number, since it uses less digits than its factorization.

709872144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14789014 (or 14789008 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 709872144 is about 26643.4259058403. The cubic root of 709872144 is about 892.0585870479.

The spelling of 709872144 in words is "seven hundred nine million, eight hundred seventy-two thousand, one hundred forty-four".