289675940 has 12 divisors (see below), whose sum is σ = 608319516. Its totient is φ = 115870368.

The previous prime is 289675927. The next prime is 289675943. The reversal of 289675940 is 49576982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76457536 + 213218404 = 8744^2 + 14602^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (289675943) 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, 7241879 + ... + 7241918.

It is an arithmetic number, because the mean of its divisors is an integer number (50693293).

Almost surely, 2^289675940 is an apocalyptic number.

289675940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289675940 is an abundant number, since it is smaller than the sum of its proper divisors (318643576).

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

289675940 is a wasteful number, since it uses less digits than its factorization.

289675940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14483806 (or 14483804 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 289675940 is about 17019.8689771690. The cubic root of 289675940 is about 661.6639526255.

The spelling of 289675940 in words is "two hundred eighty-nine million, six hundred seventy-five thousand, nine hundred forty".