274487840 has 96 divisors (see below), whose sum is σ = 711317376. Its totient is φ = 99266560.

The previous prime is 274487821. The next prime is 274487891. The reversal of 274487840 is 48784472.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 274487791 and 274487800.

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, 462584 + ... + 463176.

It is an arithmetic number, because the mean of its divisors is an integer number (7409556).

Almost surely, 2^274487840 is an apocalyptic number.

274487840 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 274487840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355658688).

274487840 is an abundant number, since it is smaller than the sum of its proper divisors (436829536).

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

274487840 is a wasteful number, since it uses less digits than its factorization.

274487840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 44.

The square root of 274487840 is about 16567.6745501594. The cubic root of 274487840 is about 649.8917689618.

The spelling of 274487840 in words is "two hundred seventy-four million, four hundred eighty-seven thousand, eight hundred forty".