289910372 has 6 divisors (see below), whose sum is σ = 507343158. Its totient is φ = 144955184.

The previous prime is 289910363. The next prime is 289910431. The reversal of 289910372 is 273019982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 218271076 + 71639296 = 14774^2 + 8464^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36238793 + ... + 36238800.

It is an arithmetic number, because the mean of its divisors is an integer number (84557193).

Almost surely, 2^289910372 is an apocalyptic number.

It is an amenable number.

289910372 is a deficient number, since it is larger than the sum of its proper divisors (217432786).

289910372 is a wasteful number, since it uses less digits than its factorization.

289910372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72477597 (or 72477595 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 289910372 is about 17026.7545938737. The cubic root of 289910372 is about 661.8423972904.

The spelling of 289910372 in words is "two hundred eighty-nine million, nine hundred ten thousand, three hundred seventy-two".