275332421 has 48 divisors (see below), whose sum is σ = 362815488. Its totient is φ = 206841600.

The previous prime is 275332373. The next prime is 275332427. The reversal of 275332421 is 124233572.

It is not a de Polignac number, because 275332421 - 2²⁶ = 208223557 is a prime.

Its product of digits (10080) is a multiple of the sum of its prime divisors (315).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275332427) 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 47 ways as a sum of consecutive naturals, for example, 1441436 + ... + 1441626.

It is an arithmetic number, because the mean of its divisors is an integer number (7558656).

Almost surely, 2^275332421 is an apocalyptic number.

It is an amenable number.

275332421 is a deficient number, since it is larger than the sum of its proper divisors (87483067).

275332421 is a wasteful number, since it uses less digits than its factorization.

275332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 315 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 275332421 is about 16593.1437949534. The cubic root of 275332421 is about 650.5576445287.

Adding to 275332421 its reverse (124233572), we get a palindrome (399565993).

The spelling of 275332421 in words is "two hundred seventy-five million, three hundred thirty-two thousand, four hundred twenty-one".