540723220 has 48 divisors (see below), whose sum is σ = 1163006208. Its totient is φ = 211115520.

The previous prime is 540723137. The next prime is 540723247. The reversal of 540723220 is 22327045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144412 + ... + 148108.

It is an arithmetic number, because the mean of its divisors is an integer number (24229296).

Almost surely, 2^540723220 is an apocalyptic number.

It is an amenable number.

540723220 is an abundant number, since it is smaller than the sum of its proper divisors (622282988).

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

540723220 is a wasteful number, since it uses less digits than its factorization.

540723220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880 (or 3878 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 540723220 is about 23253.4560872142. The cubic root of 540723220 is about 814.6886637488.

The spelling of 540723220 in words is "five hundred forty million, seven hundred twenty-three thousand, two hundred twenty".