272991920 has 40 divisors (see below), whose sum is σ = 651867504. Its totient is φ = 106244352.

The previous prime is 272991913. The next prime is 272991931. The reversal of 272991920 is 29199272.

It is a tau number, because it is divible by the number of its divisors (40).

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, 43154 + ... + 49073.

Almost surely, 2^272991920 is an apocalyptic number.

272991920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272991920 is an abundant number, since it is smaller than the sum of its proper divisors (378875584).

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

272991920 is a wasteful number, since it uses less digits than its factorization.

272991920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92277 (or 92271 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 272991920 is about 16522.4671281259. The cubic root of 272991920 is about 648.7090115834.

It can be divided in two parts, 2729 and 91920, that added together give a palindrome (94649).

The spelling of 272991920 in words is "two hundred seventy-two million, nine hundred ninety-one thousand, nine hundred twenty".