286172404 has 24 divisors (see below), whose sum is σ = 574535808. Its totient is φ = 122175840.

The previous prime is 286172389. The next prime is 286172431. The reversal of 286172404 is 404271682.

It is a happy number.

It is a super-2 number, since 2×286172404² = 163789289622278432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 286172404.

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 7 ways as a sum of consecutive naturals, for example, 12067 + ... + 26794.

It is an arithmetic number, because the mean of its divisors is an integer number (23938992).

Almost surely, 2^286172404 is an apocalyptic number.

It is an amenable number.

286172404 is an abundant number, since it is smaller than the sum of its proper divisors (288363404).

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

286172404 is a wasteful number, since it uses less digits than its factorization.

286172404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39135 (or 39133 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 286172404 is about 16916.6309884681. The cubic root of 286172404 is about 658.9855888925.

The spelling of 286172404 in words is "two hundred eighty-six million, one hundred seventy-two thousand, four hundred four".