275271940 has 24 divisors (see below), whose sum is σ = 596719872. Its totient is φ = 106556640.

The previous prime is 275271911. The next prime is 275271949. The reversal of 275271940 is 49172572.

It is a self number, because there is not a number n which added to its sum of digits gives 275271940.

It is not an unprimeable number, because it can be changed into a prime (275271949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221374 + ... + 222613.

It is an arithmetic number, because the mean of its divisors is an integer number (24863328).

Almost surely, 2^275271940 is an apocalyptic number.

275271940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275271940 is an abundant number, since it is smaller than the sum of its proper divisors (321447932).

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

275271940 is a wasteful number, since it uses less digits than its factorization.

275271940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444027 (or 444025 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 275271940 is about 16591.3212252671. The cubic root of 275271940 is about 650.5100060436.

The spelling of 275271940 in words is "two hundred seventy-five million, two hundred seventy-one thousand, nine hundred forty".