272740138 has 16 divisors (see below), whose sum is σ = 450906624. Its totient is φ = 122693760.

The previous prime is 272740123. The next prime is 272740151. The reversal of 272740138 is 831047272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61770 + ... + 66037.

It is an arithmetic number, because the mean of its divisors is an integer number (28181664).

Almost surely, 2^272740138 is an apocalyptic number.

272740138 is a deficient number, since it is larger than the sum of its proper divisors (178166486).

272740138 is a wasteful number, since it uses less digits than its factorization.

272740138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127917.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 272740138 is about 16514.8459877772. The cubic root of 272740138 is about 648.5095142351.

The spelling of 272740138 in words is "two hundred seventy-two million, seven hundred forty thousand, one hundred thirty-eight".