274385280 has 128 divisors (see below), whose sum is σ = 941965920. Its totient is φ = 67534848.

The previous prime is 274385263. The next prime is 274385291. The reversal of 274385280 is 82583472.

274385280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 19464 + ... + 30456.

Almost surely, 2^274385280 is an apocalyptic number.

274385280 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 274385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470982960).

274385280 is an abundant number, since it is smaller than the sum of its proper divisors (667580640).

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

274385280 is a wasteful number, since it uses less digits than its factorization.

274385280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11028 (or 11016 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 274385280 is about 16564.5790770548. The cubic root of 274385280 is about 649.8108167382.

The spelling of 274385280 in words is "two hundred seventy-four million, three hundred eighty-five thousand, two hundred eighty".