274140864 has 84 divisors (see below), whose sum is σ = 819979056. Its totient is φ = 87403008.

The previous prime is 274140851. The next prime is 274140899. The reversal of 274140864 is 468041472.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2902 + ... + 23594.

Almost surely, 2^274140864 is an apocalyptic number.

274140864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274140864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409989528).

274140864 is an abundant number, since it is smaller than the sum of its proper divisors (545838192).

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

274140864 is a wasteful number, since it uses less digits than its factorization.

274140864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20734 (or 20721 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 274140864 is about 16557.1997632450. The cubic root of 274140864 is about 649.6178139857.

It can be divided in two parts, 2741408 and 64, that added together give a palindrome (2741472).

The spelling of 274140864 in words is "two hundred seventy-four million, one hundred forty thousand, eight hundred sixty-four".