273138990 has 32 divisors (see below), whose sum is σ = 664518816. Its totient is φ = 71838720.

The previous prime is 273138959. The next prime is 273138991. The reversal of 273138990 is 99831372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273138991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60171 + ... + 64550.

It is an arithmetic number, because the mean of its divisors is an integer number (20766213).

Almost surely, 2^273138990 is an apocalyptic number.

273138990 is an abundant number, since it is smaller than the sum of its proper divisors (391379826).

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

273138990 is a wasteful number, since it uses less digits than its factorization.

273138990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124804.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 273138990 is about 16526.9171353886. The cubic root of 273138990 is about 648.8254845139.

The spelling of 273138990 in words is "two hundred seventy-three million, one hundred thirty-eight thousand, nine hundred ninety".