274638980 has 96 divisors (see below), whose sum is σ = 724792320. Its totient is φ = 84919680.

The previous prime is 274638967. The next prime is 274638983. The reversal of 274638980 is 89836472.

It is not an unprimeable number, because it can be changed into a prime (274638983) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 213419 + ... + 214701.

It is an arithmetic number, because the mean of its divisors is an integer number (7549920).

Almost surely, 2^274638980 is an apocalyptic number.

274638980 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 274638980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362396160).

274638980 is an abundant number, since it is smaller than the sum of its proper divisors (450153340).

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

274638980 is a wasteful number, since it uses less digits than its factorization.

274638980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 274638980 is about 16572.2352143578. The cubic root of 274638980 is about 650.0110293986.

The spelling of 274638980 in words is "two hundred seventy-four million, six hundred thirty-eight thousand, nine hundred eighty".