274742172 has 48 divisors (see below), whose sum is σ = 736864800. Its totient is φ = 88421760.

The previous prime is 274742141. The next prime is 274742197. The reversal of 274742172 is 271247472.

It is a happy number.

It is a super-2 number, since 2×274742172² = 150966522150555168, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40729 + ... + 46992.

It is an arithmetic number, because the mean of its divisors is an integer number (15351350).

Almost surely, 2^274742172 is an apocalyptic number.

It is an amenable number.

274742172 is an abundant number, since it is smaller than the sum of its proper divisors (462122628).

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

274742172 is a wasteful number, since it uses less digits than its factorization.

274742172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87763 (or 87755 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 274742172 is about 16575.3483221319. The cubic root of 274742172 is about 650.0924302483.

It can be divided in two parts, 27474 and 2172, that added together give a triangular number (29646 = T₂₄₃).

The spelling of 274742172 in words is "two hundred seventy-four million, seven hundred forty-two thousand, one hundred seventy-two".