27745442 has 8 divisors (see below), whose sum is σ = 41642832. Its totient is φ = 13864500.

The previous prime is 27745441. The next prime is 27745457. The reversal of 27745442 is 24454772.

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

It is not an unprimeable number, because it can be changed into a prime (27745441) 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, 1817 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (5205354).

Almost surely, 2^27745442 is an apocalyptic number.

27745442 is a deficient number, since it is larger than the sum of its proper divisors (13897390).

27745442 is a wasteful number, since it uses less digits than its factorization.

27745442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its digits is 62720, while the sum is 35.

The square root of 27745442 is about 5267.3942324455. The cubic root of 27745442 is about 302.7358704941.

The spelling of 27745442 in words is "twenty-seven million, seven hundred forty-five thousand, four hundred forty-two".