274749646 has 8 divisors (see below), whose sum is σ = 413201664. Its totient is φ = 137015760.

The previous prime is 274749637. The next prime is 274749653. The reversal of 274749646 is 646947472.

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

It is a self number, because there is not a number n which added to its sum of digits gives 274749646.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 178575 + ... + 180106.

It is an arithmetic number, because the mean of its divisors is an integer number (51650208).

Almost surely, 2^274749646 is an apocalyptic number.

274749646 is a deficient number, since it is larger than the sum of its proper divisors (138452018).

274749646 is a wasteful number, since it uses less digits than its factorization.

274749646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359066.

The product of its digits is 2032128, while the sum is 49.

The square root of 274749646 is about 16575.5737758908. The cubic root of 274749646 is about 650.0983251651.

The spelling of 274749646 in words is "two hundred seventy-four million, seven hundred forty-nine thousand, six hundred forty-six".