275452236 has 72 divisors (see below), whose sum is σ = 732461184. Its totient is φ = 87160320.

The previous prime is 275452231. The next prime is 275452249. The reversal of 275452236 is 632254572.

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

It is a self number, because there is not a number n which added to its sum of digits gives 275452236.

It is not an unprimeable number, because it can be changed into a prime (275452231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56820 + ... + 61476.

It is an arithmetic number, because the mean of its divisors is an integer number (10173072).

Almost surely, 2^275452236 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 275452236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366230592).

275452236 is an abundant number, since it is smaller than the sum of its proper divisors (457008948).

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

275452236 is a wasteful number, since it uses less digits than its factorization.

275452236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751 (or 4746 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 275452236 is about 16596.7537789774. The cubic root of 275452236 is about 650.6519974568.

The spelling of 275452236 in words is "two hundred seventy-five million, four hundred fifty-two thousand, two hundred thirty-six".