272241921 has 8 divisors (see below), whose sum is σ = 414844864. Its totient is φ = 155566800.

The previous prime is 272241917. The next prime is 272241929. The reversal of 272241921 is 129142272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 272241921 - 2² = 272241917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (272241929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481930 + ... + 6481971.

It is an arithmetic number, because the mean of its divisors is an integer number (51855608).

Almost surely, 2^272241921 is an apocalyptic number.

272241921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

272241921 is a deficient number, since it is larger than the sum of its proper divisors (142602943).

272241921 is a wasteful number, since it uses less digits than its factorization.

272241921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12963911.

The product of its digits is 4032, while the sum is 30.

The square root of 272241921 is about 16499.7551800019. The cubic root of 272241921 is about 648.1143940514.

The spelling of 272241921 in words is "two hundred seventy-two million, two hundred forty-one thousand, nine hundred twenty-one".