28734232404 has 24 divisors (see below), whose sum is σ = 67054085280. Its totient is φ = 9576999904.

The previous prime is 28734232391. The next prime is 28734232463. The reversal of 28734232404 is 40423243782.

It is a super-2 number, since 2×28734232404² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19659 + ... + 240530.

It is an arithmetic number, because the mean of its divisors is an integer number (2793920220).

Almost surely, 2^28734232404 is an apocalyptic number.

It is an amenable number.

28734232404 is an abundant number, since it is smaller than the sum of its proper divisors (38319852876).

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

28734232404 is a wasteful number, since it uses less digits than its factorization.

28734232404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269399 (or 269397 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 39.

The spelling of 28734232404 in words is "twenty-eight billion, seven hundred thirty-four million, two hundred thirty-two thousand, four hundred four".