275397972 has 48 divisors (see below), whose sum is σ = 659484672. Its totient is φ = 89399520.

The previous prime is 275397961. The next prime is 275397973. The reversal of 275397972 is 279793572.

It is a super-3 number, since 3×275397972³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275397973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252813 + ... + 253899.

It is an arithmetic number, because the mean of its divisors is an integer number (13739264).

Almost surely, 2^275397972 is an apocalyptic number.

It is an amenable number.

275397972 is an abundant number, since it is smaller than the sum of its proper divisors (384086700).

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

275397972 is a wasteful number, since it uses less digits than its factorization.

275397972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1626 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 51.

The square root of 275397972 is about 16595.1189209358. The cubic root of 275397972 is about 650.6092685742.

It can be divided in two parts, 27539 and 7972, that added together give a triangular number (35511 = T₂₆₆).

The spelling of 275397972 in words is "two hundred seventy-five million, three hundred ninety-seven thousand, nine hundred seventy-two".