273138400 has 36 divisors (see below), whose sum is σ = 666801072. Its totient is φ = 109255040.

The previous prime is 273138379. The next prime is 273138401. The reversal of 273138400 is 4831372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273138401) 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 5 ways as a sum of consecutive naturals, for example, 169912 + ... + 171511.

It is an arithmetic number, because the mean of its divisors is an integer number (18522252).

Almost surely, 2^273138400 is an apocalyptic number.

273138400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273138400 is an abundant number, since it is smaller than the sum of its proper divisors (393662672).

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

273138400 is a wasteful number, since it uses less digits than its factorization.

273138400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341443 (or 341430 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 273138400 is about 16526.8992857099. The cubic root of 273138400 is about 648.8250173435.

Adding to 273138400 its reverse (4831372), we get a palindrome (277969772).

The spelling of 273138400 in words is "two hundred seventy-three million, one hundred thirty-eight thousand, four hundred".