274228217 has 4 divisors (see below), whose sum is σ = 274499940. Its totient is φ = 273956496.

The previous prime is 274228211. The next prime is 274228237. The reversal of 274228217 is 712822472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89567296 + 184660921 = 9464^2 + 13589^2 .

It is a cyclic number.

It is not a de Polignac number, because 274228217 - 2¹² = 274224121 is a prime.

It is a super-2 number, since 2×274228217² = 150402229997998178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274228211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134342 + ... + 136367.

It is an arithmetic number, because the mean of its divisors is an integer number (68624985).

Almost surely, 2^274228217 is an apocalyptic number.

It is an amenable number.

274228217 is a deficient number, since it is larger than the sum of its proper divisors (271723).

274228217 is a wasteful number, since it uses less digits than its factorization.

274228217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271722.

The product of its digits is 25088, while the sum is 35.

The square root of 274228217 is about 16559.8374690092. The cubic root of 274228217 is about 649.6868053282.

The spelling of 274228217 in words is "two hundred seventy-four million, two hundred twenty-eight thousand, two hundred seventeen".