274630921 has 8 divisors (see below), whose sum is σ = 289353600. Its totient is φ = 259935120.

The previous prime is 274630919. The next prime is 274630927. The reversal of 274630921 is 129036472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274630921 - 2¹ = 274630919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274630927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16320 + ... + 28558.

It is an arithmetic number, because the mean of its divisors is an integer number (36169200).

Almost surely, 2^274630921 is an apocalyptic number.

It is an amenable number.

274630921 is a deficient number, since it is larger than the sum of its proper divisors (14722679).

274630921 is a wasteful number, since it uses less digits than its factorization.

274630921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 274630921 is about 16571.9920649269. The cubic root of 274630921 is about 650.0046713668.

The spelling of 274630921 in words is "two hundred seventy-four million, six hundred thirty thousand, nine hundred twenty-one".