27742434 has 32 divisors (see below), whose sum is σ = 56811840. Its totient is φ = 9028800.

The previous prime is 27742433. The next prime is 27742447. The reversal of 27742434 is 43424772.

It is a junction number, because it is equal to n+sod(n) for n = 27742395 and 27742404.

It is not an unprimeable number, because it can be changed into a prime (27742433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83649 + ... + 83979.

It is an arithmetic number, because the mean of its divisors is an integer number (1775370).

Almost surely, 2^27742434 is an apocalyptic number.

27742434 is an abundant number, since it is smaller than the sum of its proper divisors (29069406).

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

27742434 is a wasteful number, since it uses less digits than its factorization.

27742434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its digits is 37632, while the sum is 33.

The square root of 27742434 is about 5267.1086945306. The cubic root of 27742434 is about 302.7249298093.

The spelling of 27742434 in words is "twenty-seven million, seven hundred forty-two thousand, four hundred thirty-four".