540040212 has 36 divisors (see below), whose sum is σ = 1409140096. Its totient is φ = 174206160.

The previous prime is 540040183. The next prime is 540040223. The reversal of 540040212 is 212040045.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240838 + ... + 243069.

Almost surely, 2^540040212 is an apocalyptic number.

It is an amenable number.

540040212 is an abundant number, since it is smaller than the sum of its proper divisors (869099884).

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

540040212 is a wasteful number, since it uses less digits than its factorization.

540040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483948 (or 483943 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 540040212 is about 23238.7652856170. The cubic root of 540040212 is about 814.3454978399.

Adding to 540040212 its reverse (212040045), we get a palindrome (752080257).

The spelling of 540040212 in words is "five hundred forty million, forty thousand, two hundred twelve".