274730505 has 24 divisors (see below), whose sum is σ = 511336512. Its totient is φ = 125590752.

The previous prime is 274730501. The next prime is 274730509. The reversal of 274730505 is 505037472.

It is an interprime number because it is at equal distance from previous prime (274730501) and next prime (274730509).

It is not a de Polignac number, because 274730505 - 2² = 274730501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (274730501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186157 + ... + 187626.

It is an arithmetic number, because the mean of its divisors is an integer number (21305688).

Almost surely, 2^274730505 is an apocalyptic number.

It is an amenable number.

274730505 is a deficient number, since it is larger than the sum of its proper divisors (236606007).

274730505 is a wasteful number, since it uses less digits than its factorization.

274730505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373805 (or 373798 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 274730505 is about 16574.9963800901. The cubic root of 274730505 is about 650.0832280016.

Adding to 274730505 its reverse (505037472), we get a palindrome (779767977).

The spelling of 274730505 in words is "two hundred seventy-four million, seven hundred thirty thousand, five hundred five".