289379388 has 12 divisors (see below), whose sum is σ = 675218600. Its totient is φ = 96459792.

The previous prime is 289379383. The next prime is 289379459. The reversal of 289379388 is 883973982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289379383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12057463 + ... + 12057486.

Almost surely, 2^289379388 is an apocalyptic number.

It is an amenable number.

289379388 is an abundant number, since it is smaller than the sum of its proper divisors (385839212).

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

289379388 is a wasteful number, since it uses less digits than its factorization.

289379388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24114956 (or 24114954 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 289379388 is about 17011.1548108881. The cubic root of 289379388 is about 661.4380855583.

The spelling of 289379388 in words is "two hundred eighty-nine million, three hundred seventy-nine thousand, three hundred eighty-eight".