274879818 has 40 divisors (see below), whose sum is σ = 618052512. Its totient is φ = 91311624.

The previous prime is 274879811. The next prime is 274879853. The reversal of 274879818 is 818978472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (274879811) 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 19 ways as a sum of consecutive naturals, for example, 46971 + ... + 52497.

Almost surely, 2^274879818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274879818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309026256).

274879818 is an abundant number, since it is smaller than the sum of its proper divisors (343172694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

274879818 is a wasteful number, since it uses less digits than its factorization.

274879818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848 (or 5839 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 274879818 is about 16579.4999321451. The cubic root of 274879818 is about 650.2009776942.

The spelling of 274879818 in words is "two hundred seventy-four million, eight hundred seventy-nine thousand, eight hundred eighteen".