274730621 has 12 divisors (see below), whose sum is σ = 304199196. Its totient is φ = 247917120.

The previous prime is 274730611. The next prime is 274730623. The reversal of 274730621 is 126037472.

It can be written as a sum of positive squares in 2 ways, for example, as 174530521 + 100200100 = 13211^2 + 10010^2 .

It is a de Polignac number, because none of the positive numbers 2^k-274730621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274730623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8291 + ... + 24863.

It is an arithmetic number, because the mean of its divisors is an integer number (25349933).

Almost surely, 2^274730621 is an apocalyptic number.

It is an amenable number.

274730621 is a deficient number, since it is larger than the sum of its proper divisors (29468575).

274730621 is a wasteful number, since it uses less digits than its factorization.

274730621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16732 (or 16721 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 274730621 is about 16574.9998793363. Note that the first 3 decimals coincide. The cubic root of 274730621 is about 650.0833194968.

The spelling of 274730621 in words is "two hundred seventy-four million, seven hundred thirty thousand, six hundred twenty-one".