289176428 has 12 divisors (see below), whose sum is σ = 532693560. Its totient is φ = 136978272.

The previous prime is 289176413. The next prime is 289176431. The reversal of 289176428 is 824671982.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902401 + ... + 1902552.

It is an arithmetic number, because the mean of its divisors is an integer number (44391130).

Almost surely, 2^289176428 is an apocalyptic number.

It is an amenable number.

289176428 is a deficient number, since it is larger than the sum of its proper divisors (243517132).

289176428 is a wasteful number, since it uses less digits than its factorization.

289176428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804976 (or 3804974 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 289176428 is about 17005.1882671142. The cubic root of 289176428 is about 661.2834133222.

The spelling of 289176428 in words is "two hundred eighty-nine million, one hundred seventy-six thousand, four hundred twenty-eight".