275996812 has 72 divisors (see below), whose sum is σ = 637027440. Its totient is φ = 103420800.

The previous prime is 275996807. The next prime is 275996821. The reversal of 275996812 is 218699572.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

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, 45562 + ... + 51262.

Almost surely, 2^275996812 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 275996812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318513720).

275996812 is an abundant number, since it is smaller than the sum of its proper divisors (361030628).

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

275996812 is a wasteful number, since it uses less digits than its factorization.

275996812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751 (or 5742 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 275996812 is about 16613.1517780342. The cubic root of 275996812 is about 651.0805003161.

The spelling of 275996812 in words is "two hundred seventy-five million, nine hundred ninety-six thousand, eight hundred twelve".