789268644 has 48 divisors (see below), whose sum is σ = 2135226240. Its totient is φ = 251650080.

The previous prime is 789268619. The next prime is 789268681. The reversal of 789268644 is 446862987.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 156387 + ... + 161354.

It is an arithmetic number, because the mean of its divisors is an integer number (44483880).

Almost surely, 2^789268644 is an apocalyptic number.

It is an amenable number.

789268644 is an abundant number, since it is smaller than the sum of its proper divisors (1345957596).

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

789268644 is a wasteful number, since it uses less digits than its factorization.

789268644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317777 (or 317769 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 789268644 is about 28093.9253932234. The cubic root of 789268644 is about 924.1481884101.

The spelling of 789268644 in words is "seven hundred eighty-nine million, two hundred sixty-eight thousand, six hundred forty-four".