28498156 has 12 divisors (see below), whose sum is σ = 50432760. Its totient is φ = 14088800.

The previous prime is 28498139. The next prime is 28498181. The reversal of 28498156 is 65189482.

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, 39670 + ... + 40381.

It is an arithmetic number, because the mean of its divisors is an integer number (4202730).

Almost surely, 2^28498156 is an apocalyptic number.

It is an amenable number.

28498156 is a deficient number, since it is larger than the sum of its proper divisors (21934604).

28498156 is a wasteful number, since it uses less digits than its factorization.

28498156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80144 (or 80142 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 28498156 is about 5338.3664167983. The cubic root of 28498156 is about 305.4491492317.

The spelling of 28498156 in words is "twenty-eight million, four hundred ninety-eight thousand, one hundred fifty-six".