274480393 has 18 divisors (see below), whose sum is σ = 310263198. Its totient is φ = 242637120.

The previous prime is 274480387. The next prime is 274480429. The reversal of 274480393 is 393084472.

It can be written as a sum of positive squares in 3 ways, for example, as 128867904 + 145612489 = 11352^2 + 12067^2 .

It is not a de Polignac number, because 274480393 - 2¹⁷ = 274349321 is a prime.

It is a super-2 number, since 2×274480393² = 150678972282868898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274480303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 164821 + ... + 166477.

Almost surely, 2^274480393 is an apocalyptic number.

It is an amenable number.

274480393 is a deficient number, since it is larger than the sum of its proper divisors (35782805).

274480393 is a wasteful number, since it uses less digits than its factorization.

274480393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 274480393 is about 16567.4498037568. The cubic root of 274480393 is about 649.8858916064.

The spelling of 274480393 in words is "two hundred seventy-four million, four hundred eighty thousand, three hundred ninety-three".