274492644 has 24 divisors (see below), whose sum is σ = 641084640. Its totient is φ = 91411584.

The previous prime is 274492609. The next prime is 274492651. The reversal of 274492644 is 446294472.

It is a super-2 number, since 2×274492644² = 150692423220221472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 274492596 and 274492605.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3292 + ... + 23660.

It is an arithmetic number, because the mean of its divisors is an integer number (26711860).

Almost surely, 2^274492644 is an apocalyptic number.

It is an amenable number.

274492644 is an abundant number, since it is smaller than the sum of its proper divisors (366591996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

274492644 is a wasteful number, since it uses less digits than its factorization.

274492644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21499 (or 21497 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 274492644 is about 16567.8195306443. The cubic root of 274492644 is about 649.8955603402.

The spelling of 274492644 in words is "two hundred seventy-four million, four hundred ninety-two thousand, six hundred forty-four".