272321280 has 432 divisors, whose sum is σ = 1178521344. Its totient is φ = 56401920.

The previous prime is 272321251. The next prime is 272321293. The reversal of 272321280 is 82123272.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886887 + ... + 887193.

Almost surely, 2^272321280 is an apocalyptic number.

272321280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589260672).

272321280 is an abundant number, since it is smaller than the sum of its proper divisors (906200064).

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

272321280 is a wasteful number, since it uses less digits than its factorization.

272321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 272321280 is about 16502.1598586367. The cubic root of 272321280 is about 648.1773634295.

The spelling of 272321280 in words is "two hundred seventy-two million, three hundred twenty-one thousand, two hundred eighty".