28485156 has 48 divisors (see below), whose sum is σ = 78417920. Its totient is φ = 7875360.

The previous prime is 28485151. The next prime is 28485157. The reversal of 28485156 is 65158482.

It is a super-2 number, since 2×28485156² = 1622808224688672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28485151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2866 + ... + 8073.

Almost surely, 2^28485156 is an apocalyptic number.

It is an amenable number.

28485156 is an abundant number, since it is smaller than the sum of its proper divisors (49932764).

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

28485156 is a wasteful number, since it uses less digits than its factorization.

28485156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10984 (or 10982 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 28485156 is about 5337.1486769623. The cubic root of 28485156 is about 305.4026966017.

The spelling of 28485156 in words is "twenty-eight million, four hundred eighty-five thousand, one hundred fifty-six".