27968280 has 32 divisors (see below), whose sum is σ = 83905200. Its totient is φ = 7458176.

The previous prime is 27968219. The next prime is 27968327. The reversal of 27968280 is 8286972.

It is a happy number.

It is a congruent number.

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, 116415 + ... + 116654.

Almost surely, 2^27968280 is an apocalyptic number.

27968280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27968280 is an abundant number, since it is smaller than the sum of its proper divisors (55936920).

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

27968280 is a wasteful number, since it uses less digits than its factorization.

27968280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233083 (or 233079 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 27968280 is about 5288.5045145107. The cubic root of 27968280 is about 303.5441864761.

The spelling of 27968280 in words is "twenty-seven million, nine hundred sixty-eight thousand, two hundred eighty".