274720320 has 168 divisors, whose sum is σ = 1079991744. Its totient is φ = 62788608.

The previous prime is 274720319. The next prime is 274720333. The reversal of 274720320 is 23027472.

274720320 is a `hidden beast` number, since 274 + 72 + 0 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13347 + ... + 26973.

Almost surely, 2^274720320 is an apocalyptic number.

274720320 is a gapful number since it is divisible by the number (20) 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 274720320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539995872).

274720320 is an abundant number, since it is smaller than the sum of its proper divisors (805271424).

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

274720320 is a wasteful number, since it uses less digits than its factorization.

274720320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13657 (or 13644 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 274720320 is about 16574.6891373564. The cubic root of 274720320 is about 650.0751944567.

Adding to 274720320 its reverse (23027472), we get a palindrome (297747792).

The spelling of 274720320 in words is "two hundred seventy-four million, seven hundred twenty thousand, three hundred twenty".