274231540 has 96 divisors (see below), whose sum is σ = 662981760. Its totient is φ = 94348800.

The previous prime is 274231537. The next prime is 274231547. The reversal of 274231540 is 45132472.

It is a junction number, because it is equal to n+sod(n) for n = 274231499 and 274231508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274231547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337735 + ... + 338545.

It is an arithmetic number, because the mean of its divisors is an integer number (6906060).

Almost surely, 2^274231540 is an apocalyptic number.

274231540 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 274231540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331490880).

274231540 is an abundant number, since it is smaller than the sum of its proper divisors (388750220).

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

274231540 is a wasteful number, since it uses less digits than its factorization.

274231540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 274231540 is about 16559.9378018156. The cubic root of 274231540 is about 649.6894295421.

The spelling of 274231540 in words is "two hundred seventy-four million, two hundred thirty-one thousand, five hundred forty".