540305940 has 24 divisors (see below), whose sum is σ = 1512856800. Its totient is φ = 144081568.

The previous prime is 540305939. The next prime is 540305971. The reversal of 540305940 is 49503045.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 540305898 and 540305907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4502490 + ... + 4502609.

It is an arithmetic number, because the mean of its divisors is an integer number (63035700).

Almost surely, 2^540305940 is an apocalyptic number.

It is an amenable number.

540305940 is an abundant number, since it is smaller than the sum of its proper divisors (972550860).

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

540305940 is a wasteful number, since it uses less digits than its factorization.

540305940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005111 (or 9005109 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 540305940 is about 23244.4819258249. The cubic root of 540305940 is about 814.4790427828.

Adding to 540305940 its reverse (49503045), we get a palindrome (589808985).

The spelling of 540305940 in words is "five hundred forty million, three hundred five thousand, nine hundred forty".