289089392 has 20 divisors (see below), whose sum is σ = 584464080. Its totient is φ = 138259968.

The previous prime is 289089373. The next prime is 289089407. The reversal of 289089392 is 293980982.

It is a self number, because there is not a number n which added to its sum of digits gives 289089392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392417 + ... + 393152.

It is an arithmetic number, because the mean of its divisors is an integer number (29223204).

Almost surely, 2^289089392 is an apocalyptic number.

It is an amenable number.

289089392 is an abundant number, since it is smaller than the sum of its proper divisors (295374688).

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

289089392 is a wasteful number, since it uses less digits than its factorization.

289089392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785600 (or 785594 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 289089392 is about 17002.6289731912. The cubic root of 289089392 is about 661.2170625494.

The spelling of 289089392 in words is "two hundred eighty-nine million, eighty-nine thousand, three hundred ninety-two".