272820660 has 48 divisors (see below), whose sum is σ = 873027456. Its totient is φ = 62358912.

The previous prime is 272820649. The next prime is 272820671. The reversal of 272820660 is 66028272.

It is an interprime number because it is at equal distance from previous prime (272820649) and next prime (272820671).

It is a super-2 number, since 2×272820660² = 148862225045671200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324367 + ... + 325206.

It is an arithmetic number, because the mean of its divisors is an integer number (18188072).

Almost surely, 2^272820660 is an apocalyptic number.

272820660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272820660 is an abundant number, since it is smaller than the sum of its proper divisors (600206796).

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

272820660 is a wasteful number, since it uses less digits than its factorization.

272820660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649592 (or 649590 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 272820660 is about 16517.2836749872. The cubic root of 272820660 is about 648.5733285131.

The spelling of 272820660 in words is "two hundred seventy-two million, eight hundred twenty thousand, six hundred sixty".