274298981 has 16 divisors (see below), whose sum is σ = 306754560. Its totient is φ = 243175920.

The previous prime is 274298963. The next prime is 274299001. The reversal of 274298981 is 189892472.

It is a cyclic number.

It is not a de Polignac number, because 274298981 - 2⁶ = 274298917 is a prime.

It is a super-2 number, since 2×274298981² = 150479861955276722, 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 (274298911) 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, 70226 + ... + 74028.

It is an arithmetic number, because the mean of its divisors is an integer number (19172160).

Almost surely, 2^274298981 is an apocalyptic number.

It is an amenable number.

274298981 is a deficient number, since it is larger than the sum of its proper divisors (32455579).

274298981 is a wasteful number, since it uses less digits than its factorization.

274298981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976.

The product of its digits is 580608, while the sum is 50.

The square root of 274298981 is about 16561.9739463628. The cubic root of 274298981 is about 649.7426839483.

The spelling of 274298981 in words is "two hundred seventy-four million, two hundred ninety-eight thousand, nine hundred eighty-one".