27426380 has 48 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 10611648.

The previous prime is 27426353. The next prime is 27426397. The reversal of 27426380 is 8362472.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 153131 + ... + 153309.

It is an arithmetic number, because the mean of its divisors is an integer number (1239840).

Almost surely, 2^27426380 is an apocalyptic number.

27426380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27426380 is an abundant number, since it is smaller than the sum of its proper divisors (32085940).

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

27426380 is a wasteful number, since it uses less digits than its factorization.

27426380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 27426380 is about 5237.0201450825. The cubic root of 27426380 is about 301.5709446032.

The spelling of 27426380 in words is "twenty-seven million, four hundred twenty-six thousand, three hundred eighty".