28179492 has 24 divisors (see below), whose sum is σ = 71729952. Its totient is φ = 8539200.

The previous prime is 28179479. The next prime is 28179497. The reversal of 28179492 is 29497182.

It is not an unprimeable number, because it can be changed into a prime (28179497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106609 + ... + 106872.

It is an arithmetic number, because the mean of its divisors is an integer number (2988748).

Almost surely, 2^28179492 is an apocalyptic number.

28179492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28179492 is an abundant number, since it is smaller than the sum of its proper divisors (43550460).

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

28179492 is a wasteful number, since it uses less digits than its factorization.

28179492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213499 (or 213497 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 28179492 is about 5308.4359278416. The cubic root of 28179492 is about 304.3063768350.

The spelling of 28179492 in words is "twenty-eight million, one hundred seventy-nine thousand, four hundred ninety-two".