272991420 has 72 divisors (see below), whose sum is σ = 891779616. Its totient is φ = 67197312.

The previous prime is 272991353. The next prime is 272991431. The reversal of 272991420 is 24199272.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55992 + ... + 60671.

It is an arithmetic number, because the mean of its divisors is an integer number (12385828).

Almost surely, 2^272991420 is an apocalyptic number.

272991420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272991420 is an abundant number, since it is smaller than the sum of its proper divisors (618788196).

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

272991420 is a wasteful number, since it uses less digits than its factorization.

272991420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116691 (or 116686 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 272991420 is about 16522.4519972067. The cubic root of 272991420 is about 648.7086155342.

It can be divided in two parts, 2729 and 91420, that added together give a palindrome (94149).

The spelling of 272991420 in words is "two hundred seventy-two million, nine hundred ninety-one thousand, four hundred twenty".