289428012 has 48 divisors (see below), whose sum is σ = 767831680. Its totient is φ = 94230864.

The previous prime is 289427993. The next prime is 289428017. The reversal of 289428012 is 210824982.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (289428017) 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, 26518 + ... + 35805.

Almost surely, 2^289428012 is an apocalyptic number.

It is an amenable number.

289428012 is an abundant number, since it is smaller than the sum of its proper divisors (478403668).

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

289428012 is a wasteful number, since it uses less digits than its factorization.

289428012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62379 (or 62371 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 289428012 is about 17012.5839307261. The cubic root of 289428012 is about 661.4751303118.

The spelling of 289428012 in words is "two hundred eighty-nine million, four hundred twenty-eight thousand, twelve".