289346772 has 48 divisors (see below), whose sum is σ = 793179072. Its totient is φ = 80935680.

The previous prime is 289346747. The next prime is 289346773. The reversal of 289346772 is 277643982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289346773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82593 + ... + 86024.

It is an arithmetic number, because the mean of its divisors is an integer number (16524564).

Almost surely, 2^289346772 is an apocalyptic number.

289346772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

289346772 is an abundant number, since it is smaller than the sum of its proper divisors (503832300).

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

289346772 is a wasteful number, since it uses less digits than its factorization.

289346772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168648 (or 168646 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 289346772 is about 17010.1961187989. The cubic root of 289346772 is about 661.4132343583.

The spelling of 289346772 in words is "two hundred eighty-nine million, three hundred forty-six thousand, seven hundred seventy-two".