27442345 has 16 divisors (see below), whose sum is σ = 38654208. Its totient is φ = 18308160.

The previous prime is 27442343. The next prime is 27442351. The reversal of 27442345 is 54324472.

It is a happy number.

It is not a de Polignac number, because 27442345 - 2¹ = 27442343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27442343) 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 15 ways as a sum of consecutive naturals, for example, 9301 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (2415888).

Almost surely, 2^27442345 is an apocalyptic number.

It is an amenable number.

27442345 is a deficient number, since it is larger than the sum of its proper divisors (11211863).

27442345 is a wasteful number, since it uses less digits than its factorization.

27442345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21240.

The product of its digits is 26880, while the sum is 31.

The square root of 27442345 is about 5238.5441679917. The cubic root of 27442345 is about 301.6294484504.

The spelling of 27442345 in words is "twenty-seven million, four hundred forty-two thousand, three hundred forty-five".