275399120 has 20 divisors (see below), whose sum is σ = 640303140. Its totient is φ = 110159616.

The previous prime is 275399101. The next prime is 275399141. The reversal of 275399120 is 21993572.

275399120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118548544 + 156850576 = 10888^2 + 12524^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721165 + ... + 1721324.

It is an arithmetic number, because the mean of its divisors is an integer number (32015157).

Almost surely, 2^275399120 is an apocalyptic number.

275399120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275399120 is an abundant number, since it is smaller than the sum of its proper divisors (364904020).

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

275399120 is a wasteful number, since it uses less digits than its factorization.

275399120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442502 (or 3442496 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 275399120 is about 16595.1535093834. The cubic root of 275399120 is about 650.6101725974.

The spelling of 275399120 in words is "two hundred seventy-five million, three hundred ninety-nine thousand, one hundred twenty".