274215456 has 120 divisors (see below), whose sum is σ = 819015120. Its totient is φ = 89983872.

The previous prime is 274215449. The next prime is 274215493. The reversal of 274215456 is 654512472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 274215456.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 172875 + ... + 174453.

It is an arithmetic number, because the mean of its divisors is an integer number (6825126).

Almost surely, 2^274215456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274215456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409507560).

274215456 is an abundant number, since it is smaller than the sum of its proper divisors (544799664).

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

274215456 is a wasteful number, since it uses less digits than its factorization.

274215456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 1651 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 274215456 is about 16559.4521648513. The cubic root of 274215456 is about 649.6767276126.

The spelling of 274215456 in words is "two hundred seventy-four million, two hundred fifteen thousand, four hundred fifty-six".