272123440 has 40 divisors (see below), whose sum is σ = 643070448. Its totient is φ = 107063040.

The previous prime is 272123429. The next prime is 272123459. The reversal of 272123440 is 44321272.

It is a happy number.

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, 23002 + ... + 32761.

Almost surely, 2^272123440 is an apocalyptic number.

272123440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272123440 is an abundant number, since it is smaller than the sum of its proper divisors (370947008).

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

272123440 is a wasteful number, since it uses less digits than its factorization.

272123440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55837 (or 55831 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 272123440 is about 16496.1644026725. The cubic root of 272123440 is about 648.0203595696.

The spelling of 272123440 in words is "two hundred seventy-two million, one hundred twenty-three thousand, four hundred forty".