27880304 has 20 divisors (see below), whose sum is σ = 54159480. Its totient is φ = 13903680.

The previous prime is 27880283. The next prime is 27880309. The reversal of 27880304 is 40308872.

It is a super-2 number, since 2×27880304² = 1554622702264832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27880309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4667 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (2707974).

Almost surely, 2^27880304 is an apocalyptic number.

It is an amenable number.

27880304 is a deficient number, since it is larger than the sum of its proper divisors (26279176).

27880304 is a wasteful number, since it uses less digits than its factorization.

27880304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568 (or 4562 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 27880304 is about 5280.1802999519. The cubic root of 27880304 is about 303.2255796744.

The spelling of 27880304 in words is "twenty-seven million, eight hundred eighty thousand, three hundred four".