275338021 has 8 divisors (see below), whose sum is σ = 320609664. Its totient is φ = 231550800.

The previous prime is 275338013. The next prime is 275338031. The reversal of 275338021 is 120833572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275338021 - 2³ = 275338013 is a prime.

It is a super-2 number, since 2×275338021² = 151622051616392882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275338031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370705 + ... + 371446.

It is an arithmetic number, because the mean of its divisors is an integer number (40076208).

Almost surely, 2^275338021 is an apocalyptic number.

It is an amenable number.

275338021 is a deficient number, since it is larger than the sum of its proper divisors (45271643).

275338021 is an equidigital number, since it uses as much as digits as its factorization.

275338021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742211.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 275338021 is about 16593.3125384897. The cubic root of 275338021 is about 650.5620550737.

The spelling of 275338021 in words is "two hundred seventy-five million, three hundred thirty-eight thousand, twenty-one".