275647940 has 12 divisors (see below), whose sum is σ = 578860716. Its totient is φ = 110259168.

The previous prime is 275647937. The next prime is 275647969. The reversal of 275647940 is 49746572.

It can be written as a sum of positive squares in 2 ways, for example, as 206956996 + 68690944 = 14386^2 + 8288^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275647891 and 275647900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6891179 + ... + 6891218.

It is an arithmetic number, because the mean of its divisors is an integer number (48238393).

Almost surely, 2^275647940 is an apocalyptic number.

275647940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275647940 is an abundant number, since it is smaller than the sum of its proper divisors (303212776).

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

275647940 is a wasteful number, since it uses less digits than its factorization.

275647940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782406 (or 13782404 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 275647940 is about 16602.6485838856. The cubic root of 275647940 is about 650.8060532691.

The spelling of 275647940 in words is "two hundred seventy-five million, six hundred forty-seven thousand, nine hundred forty".