275820972 has 48 divisors (see below), whose sum is σ = 760892160. Its totient is φ = 76087872.

The previous prime is 275820959. The next prime is 275820983. The reversal of 275820972 is 279028572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 54178 + ... + 59049.

It is an arithmetic number, because the mean of its divisors is an integer number (15851920).

Almost surely, 2^275820972 is an apocalyptic number.

It is an amenable number.

275820972 is an abundant number, since it is smaller than the sum of its proper divisors (485071188).

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

275820972 is a wasteful number, since it uses less digits than its factorization.

275820972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113270 (or 113268 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 275820972 is about 16607.8587421738. The cubic root of 275820972 is about 650.9422012342.

The spelling of 275820972 in words is "two hundred seventy-five million, eight hundred twenty thousand, nine hundred seventy-two".