273321540 has 72 divisors (see below), whose sum is σ = 859797120. Its totient is φ = 72884448.

The previous prime is 273321527. The next prime is 273321551. The reversal of 273321540 is 45123372.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23260 + ... + 32979.

Almost surely, 2^273321540 is an apocalyptic number.

273321540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273321540 is an abundant number, since it is smaller than the sum of its proper divisors (586475580).

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

273321540 is a wasteful number, since it uses less digits than its factorization.

273321540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56263 (or 56249 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 273321540 is about 16532.4390215116. The cubic root of 273321540 is about 648.9699978929.

The spelling of 273321540 in words is "two hundred seventy-three million, three hundred twenty-one thousand, five hundred forty".