274391349 has 16 divisors (see below), whose sum is σ = 368860800. Its totient is φ = 181431360.

The previous prime is 274391347. The next prime is 274391353. The reversal of 274391349 is 943193472.

It is not a de Polignac number, because 274391349 - 2¹ = 274391347 is a prime.

It is a super-2 number, since 2×274391349² = 150581224812079602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 274391349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274391347) 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 15 ways as a sum of consecutive naturals, for example, 274719 + ... + 275715.

It is an arithmetic number, because the mean of its divisors is an integer number (23053800).

Almost surely, 2^274391349 is an apocalyptic number.

It is an amenable number.

274391349 is a deficient number, since it is larger than the sum of its proper divisors (94469451).

274391349 is a wasteful number, since it uses less digits than its factorization.

274391349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

The product of its digits is 163296, while the sum is 42.

The square root of 274391349 is about 16564.7622681402. The cubic root of 274391349 is about 649.8156076570.

The spelling of 274391349 in words is "two hundred seventy-four million, three hundred ninety-one thousand, three hundred forty-nine".