273283812 has 18 divisors (see below), whose sum is σ = 690800838. Its totient is φ = 91094592.

The previous prime is 273283799. The next prime is 273283841. The reversal of 273283812 is 218382372.

It is a happy number.

273283812 is a `hidden beast` number, since 273 + 2 + 8 + 381 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 256832676 + 16451136 = 16026^2 + 4056^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7591217 = 273283812 / (2 + 7 + 3 + 2 + 8 + 3 + 8 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3795573 + ... + 3795644.

Almost surely, 2^273283812 is an apocalyptic number.

It is an amenable number.

273283812 is an abundant number, since it is smaller than the sum of its proper divisors (417517026).

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

273283812 is a wasteful number, since it uses less digits than its factorization.

273283812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591227 (or 7591222 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 273283812 is about 16531.2979526715. The cubic root of 273283812 is about 648.9401362792.

The spelling of 273283812 in words is "two hundred seventy-three million, two hundred eighty-three thousand, eight hundred twelve".