275209452 has 144 divisors (see below), whose sum is σ = 843897600. Its totient is φ = 73872000.

The previous prime is 275209427. The next prime is 275209469. The reversal of 275209452 is 254902572.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1096327 + ... + 1096577.

It is an arithmetic number, because the mean of its divisors is an integer number (5860400).

Almost surely, 2^275209452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275209452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421948800).

275209452 is an abundant number, since it is smaller than the sum of its proper divisors (568688148).

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

275209452 is a wasteful number, since it uses less digits than its factorization.

275209452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 275209452 is about 16589.4379651633. The cubic root of 275209452 is about 650.4607793947.

The spelling of 275209452 in words is "two hundred seventy-five million, two hundred nine thousand, four hundred fifty-two".