272238945 has 32 divisors (see below), whose sum is σ = 479571840. Its totient is φ = 130775040.

The previous prime is 272238929. The next prime is 272238947. The reversal of 272238945 is 549832272.

It is not a de Polignac number, because 272238945 - 2⁴ = 272238929 is a prime.

It is a super-2 number, since 2×272238945² = 148228086349426050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 272238897 and 272238906.

It is not an unprimeable number, because it can be changed into a prime (272238947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10417 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (14986620).

Almost surely, 2^272238945 is an apocalyptic number.

It is an amenable number.

272238945 is a deficient number, since it is larger than the sum of its proper divisors (207332895).

272238945 is a wasteful number, since it uses less digits than its factorization.

272238945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265.

The product of its digits is 241920, while the sum is 42.

The square root of 272238945 is about 16499.6649965992. The cubic root of 272238945 is about 648.1120324320.

The spelling of 272238945 in words is "two hundred seventy-two million, two hundred thirty-eight thousand, nine hundred forty-five".