27980446 has 8 divisors (see below), whose sum is σ = 45199224. Its totient is φ = 12914040.

The previous prime is 27980431. The next prime is 27980471. The reversal of 27980446 is 64408972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27980399 and 27980408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538060 + ... + 538111.

It is an arithmetic number, because the mean of its divisors is an integer number (5649903).

Almost surely, 2^27980446 is an apocalyptic number.

27980446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

27980446 is a deficient number, since it is larger than the sum of its proper divisors (17218778).

27980446 is a wasteful number, since it uses less digits than its factorization.

27980446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076186.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 27980446 is about 5289.6546201052. The cubic root of 27980446 is about 303.5881932729.

The spelling of 27980446 in words is "twenty-seven million, nine hundred eighty thousand, four hundred forty-six".