274256442 has 80 divisors (see below), whose sum is σ = 642039552. Its totient is φ = 87402240.

The previous prime is 274256413. The next prime is 274256443. The reversal of 274256442 is 244652472.

274256442 is a `hidden beast` number, since 2 + 7 + 4 + 2 + 5 + 644 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 274256397 and 274256406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274256443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 486853 + ... + 487415.

Almost surely, 2^274256442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274256442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321019776).

274256442 is an abundant number, since it is smaller than the sum of its proper divisors (367783110).

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

274256442 is a wasteful number, since it uses less digits than its factorization.

274256442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 696 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 274256442 is about 16560.6896595522. The cubic root of 274256442 is about 649.7090942830.

The spelling of 274256442 in words is "two hundred seventy-four million, two hundred fifty-six thousand, four hundred forty-two".