274493666 has 8 divisors (see below), whose sum is σ = 412985424. Its totient is φ = 136831860.

The previous prime is 274493663. The next prime is 274493701. The reversal of 274493666 is 666394472.

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 274493666.

It is not an unprimeable number, because it can be changed into a prime (274493663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206660 + ... + 207983.

It is an arithmetic number, because the mean of its divisors is an integer number (51623178).

Almost surely, 2^274493666 is an apocalyptic number.

274493666 is a deficient number, since it is larger than the sum of its proper divisors (138491758).

274493666 is a wasteful number, since it uses less digits than its factorization.

274493666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414976.

The product of its digits is 1306368, while the sum is 47.

The square root of 274493666 is about 16567.8503735397. The cubic root of 274493666 is about 649.8963669100.

The spelling of 274493666 in words is "two hundred seventy-four million, four hundred ninety-three thousand, six hundred sixty-six".