274495221 has 48 divisors (see below), whose sum is σ = 532371840. Its totient is φ = 131621760.

The previous prime is 274495219. The next prime is 274495229. The reversal of 274495221 is 122594472.

It is not a de Polignac number, because 274495221 - 2¹ = 274495219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274495229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6226 + ... + 24243.

It is an arithmetic number, because the mean of its divisors is an integer number (11091080).

Almost surely, 2^274495221 is an apocalyptic number.

274495221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

274495221 is a deficient number, since it is larger than the sum of its proper divisors (257876619).

274495221 is a wasteful number, since it uses less digits than its factorization.

274495221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30506 (or 30503 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 274495221 is about 16567.8973017097. The cubic root of 274495221 is about 649.8975941235.

The spelling of 274495221 in words is "two hundred seventy-four million, four hundred ninety-five thousand, two hundred twenty-one".