289974384 has 80 divisors (see below), whose sum is σ = 951248640. Its totient is φ = 82848960.

The previous prime is 289974383. The next prime is 289974449. The reversal of 289974384 is 483479982.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 289974384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289974383) 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, 44922 + ... + 50969.

It is an arithmetic number, because the mean of its divisors is an integer number (11890608).

Almost surely, 2^289974384 is an apocalyptic number.

289974384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

289974384 is an abundant number, since it is smaller than the sum of its proper divisors (661274256).

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

289974384 is a wasteful number, since it uses less digits than its factorization.

289974384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95915 (or 95903 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 289974384 is about 17028.6342376598. The cubic root of 289974384 is about 661.8911051462.

The spelling of 289974384 in words is "two hundred eighty-nine million, nine hundred seventy-four thousand, three hundred eighty-four".