27980224 has 14 divisors (see below), whose sum is σ = 55523384. Its totient is φ = 13990080.

The previous prime is 27980221. The next prime is 27980233. The reversal of 27980224 is 42208972.

It is a self number, because there is not a number n which added to its sum of digits gives 27980224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27980221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218532 + ... + 218659.

It is an arithmetic number, because the mean of its divisors is an integer number (3965956).

Almost surely, 2^27980224 is an apocalyptic number.

It is an amenable number.

27980224 is a deficient number, since it is larger than the sum of its proper divisors (27543160).

27980224 is an equidigital number, since it uses as much as digits as its factorization.

27980224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437203 (or 437193 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 27980224 is about 5289.6336357067. The cubic root of 27980224 is about 303.5873903698.

The spelling of 27980224 in words is "twenty-seven million, nine hundred eighty thousand, two hundred twenty-four".