274985140 has 12 divisors (see below), whose sum is σ = 577468836. Its totient is φ = 109994048.

The previous prime is 274985131. The next prime is 274985141. The reversal of 274985140 is 41589472.

It can be written as a sum of positive squares in 2 ways, for example, as 128187684 + 146797456 = 11322^2 + 12116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 274985093 and 274985102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274985141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6874609 + ... + 6874648.

It is an arithmetic number, because the mean of its divisors is an integer number (48122403).

Almost surely, 2^274985140 is an apocalyptic number.

274985140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274985140 is an abundant number, since it is smaller than the sum of its proper divisors (302483696).

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

274985140 is a wasteful number, since it uses less digits than its factorization.

274985140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13749266 (or 13749264 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 274985140 is about 16582.6758998661. The cubic root of 274985140 is about 650.2840100093.

The spelling of 274985140 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, one hundred forty".