275339421 has 24 divisors (see below), whose sum is σ = 461986304. Its totient is φ = 154755360.

The previous prime is 275339419. The next prime is 275339443. The reversal of 275339421 is 124933572.

It is not a de Polignac number, because 275339421 - 2¹ = 275339419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275339461) 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 23 ways as a sum of consecutive naturals, for example, 31981 + ... + 39666.

Almost surely, 2^275339421 is an apocalyptic number.

275339421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

275339421 is a deficient number, since it is larger than the sum of its proper divisors (186646883).

275339421 is a wasteful number, since it uses less digits than its factorization.

275339421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71721 (or 71718 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 275339421 is about 16593.3547241057. The cubic root of 275339421 is about 650.5631577006.

The spelling of 275339421 in words is "two hundred seventy-five million, three hundred thirty-nine thousand, four hundred twenty-one".