27928452 has 12 divisors (see below), whose sum is σ = 65166416. Its totient is φ = 9309480.

The previous prime is 27928441. The next prime is 27928469. The reversal of 27928452 is 25482972.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×27928452² = 1559996862232608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27928452.

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 3 ways as a sum of consecutive naturals, for example, 1163674 + ... + 1163697.

Almost surely, 2^27928452 is an apocalyptic number.

It is an amenable number.

27928452 is an abundant number, since it is smaller than the sum of its proper divisors (37237964).

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

27928452 is a wasteful number, since it uses less digits than its factorization.

27928452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327378 (or 2327376 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 27928452 is about 5284.7376472253. The cubic root of 27928452 is about 303.4000314896.

The spelling of 27928452 in words is "twenty-seven million, nine hundred twenty-eight thousand, four hundred fifty-two".