289869372 has 72 divisors (see below), whose sum is σ = 795465216. Its totient is φ = 88470144.

The previous prime is 289869361. The next prime is 289869389. The reversal of 289869372 is 273968982.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 56998 + ... + 61874.

It is an arithmetic number, because the mean of its divisors is an integer number (11048128).

Almost surely, 2^289869372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289869372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397732608).

289869372 is an abundant number, since it is smaller than the sum of its proper divisors (505595844).

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

289869372 is a wasteful number, since it uses less digits than its factorization.

289869372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027 (or 5022 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 289869372 is about 17025.5505637850. The cubic root of 289869372 is about 661.8111959029.

The spelling of 289869372 in words is "two hundred eighty-nine million, eight hundred sixty-nine thousand, three hundred seventy-two".