28486276 has 24 divisors (see below), whose sum is σ = 61355840. Its totient is φ = 11269152.

The previous prime is 28486261. The next prime is 28486307. The reversal of 28486276 is 67268482.

It is a super-2 number, since 2×28486276² = 1622935840696352, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38766 + ... + 39493.

Almost surely, 2^28486276 is an apocalyptic number.

28486276 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28486276 is an abundant number, since it is smaller than the sum of its proper divisors (32869564).

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

28486276 is a wasteful number, since it uses less digits than its factorization.

28486276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78283 (or 78281 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 28486276 is about 5337.2536008700. The cubic root of 28486276 is about 305.4066992308.

The spelling of 28486276 in words is "twenty-eight million, four hundred eighty-six thousand, two hundred seventy-six".