274740645 has 32 divisors (see below), whose sum is σ = 448792704. Its totient is φ = 143481600.

The previous prime is 274740637. The next prime is 274740649. The reversal of 274740645 is 546047472.

It is not a de Polignac number, because 274740645 - 2³ = 274740637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274740649) 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 31 ways as a sum of consecutive naturals, for example, 258415 + ... + 259475.

It is an arithmetic number, because the mean of its divisors is an integer number (14024772).

Almost surely, 2^274740645 is an apocalyptic number.

It is an amenable number.

274740645 is a deficient number, since it is larger than the sum of its proper divisors (174052059).

274740645 is a wasteful number, since it uses less digits than its factorization.

274740645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 188160, while the sum is 39.

The square root of 274740645 is about 16575.3022596875. The cubic root of 274740645 is about 650.0912258549.

The spelling of 274740645 in words is "two hundred seventy-four million, seven hundred forty thousand, six hundred forty-five".