27442730 has 32 divisors (see below), whose sum is σ = 56681856. Its totient is φ = 9370944.

The previous prime is 27442721. The next prime is 27442733. The reversal of 27442730 is 3724472.

It is a junction number, because it is equal to n+sod(n) for n = 27442693 and 27442702.

It is not an unprimeable number, because it can be changed into a prime (27442733) 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, 20852 + ... + 22128.

It is an arithmetic number, because the mean of its divisors is an integer number (1771308).

Almost surely, 2^27442730 is an apocalyptic number.

27442730 is an abundant number, since it is smaller than the sum of its proper divisors (29239126).

27442730 is a wasteful number, since it uses less digits than its factorization.

27442730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 27442730 is about 5238.5809147134. The cubic root of 27442730 is about 301.6308590052.

The spelling of 27442730 in words is "twenty-seven million, four hundred forty-two thousand, seven hundred thirty".