272391242 has 4 divisors (see below), whose sum is σ = 408586866. Its totient is φ = 136195620.

The previous prime is 272391241. The next prime is 272391253. The reversal of 272391242 is 242193272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 272283001 + 108241 = 16501^2 + 329^2 .

It is a junction number, because it is equal to n+sod(n) for n = 272391199 and 272391208.

It is not an unprimeable number, because it can be changed into a prime (272391241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68097809 + ... + 68097812.

Almost surely, 2^272391242 is an apocalyptic number.

272391242 is a deficient number, since it is larger than the sum of its proper divisors (136195624).

272391242 is a wasteful number, since it uses less digits than its factorization.

272391242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136195623.

The product of its digits is 12096, while the sum is 32.

The square root of 272391242 is about 16504.2795056313. The cubic root of 272391242 is about 648.2328663778.

The spelling of 272391242 in words is "two hundred seventy-two million, three hundred ninety-one thousand, two hundred forty-two".