27142770 has 16 divisors (see below), whose sum is σ = 65142720. Its totient is φ = 7238064.

The previous prime is 27142757. The next prime is 27142771. The reversal of 27142770 is 7724172.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 904759 = 27142770 / (2 + 7 + 1 + 4 + 2 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (27142771) 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 7 ways as a sum of consecutive naturals, for example, 452350 + ... + 452409.

It is an arithmetic number, because the mean of its divisors is an integer number (4071420).

Almost surely, 2^27142770 is an apocalyptic number.

27142770 is an abundant number, since it is smaller than the sum of its proper divisors (37999950).

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

27142770 is a wasteful number, since it uses less digits than its factorization.

27142770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904769.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 27142770 is about 5209.8723592810. The cubic root of 27142770 is about 300.5278484863.

The spelling of 27142770 in words is "twenty-seven million, one hundred forty-two thousand, seven hundred seventy".