274968640 has 28 divisors (see below), whose sum is σ = 654769836. Its totient is φ = 109987328.

The previous prime is 274968619. The next prime is 274968643. The reversal of 274968640 is 46869472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 158155776 + 116812864 = 12576^2 + 10808^2 .

It is not an unprimeable number, because it can be changed into a prime (274968643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429319 + ... + 429958.

It is an arithmetic number, because the mean of its divisors is an integer number (23384637).

Almost surely, 2^274968640 is an apocalyptic number.

274968640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274968640 is an abundant number, since it is smaller than the sum of its proper divisors (379801196).

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

274968640 is an equidigital number, since it uses as much as digits as its factorization.

274968640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859294 (or 859284 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 274968640 is about 16582.1783852424. The cubic root of 274968640 is about 650.2710033661.

The spelling of 274968640 in words is "two hundred seventy-four million, nine hundred sixty-eight thousand, six hundred forty".