273486138 has 16 divisors (see below), whose sum is σ = 558610560. Its totient is φ = 89222336.

The previous prime is 273486137. The next prime is 273486163. The reversal of 273486138 is 831684372.

It is a self number, because there is not a number n which added to its sum of digits gives 273486138.

It is not an unprimeable number, because it can be changed into a prime (273486131) 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 7 ways as a sum of consecutive naturals, for example, 484623 + ... + 485186.

It is an arithmetic number, because the mean of its divisors is an integer number (34913160).

Almost surely, 2^273486138 is an apocalyptic number.

273486138 is an abundant number, since it is smaller than the sum of its proper divisors (285124422).

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

273486138 is a wasteful number, since it uses less digits than its factorization.

273486138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969861.

The product of its digits is 193536, while the sum is 42.

The square root of 273486138 is about 16537.4163036431. The cubic root of 273486138 is about 649.1002446446.

The spelling of 273486138 in words is "two hundred seventy-three million, four hundred eighty-six thousand, one hundred thirty-eight".