540637620 has 96 divisors (see below), whose sum is σ = 1544054400. Its totient is φ = 141318144.

The previous prime is 540637607. The next prime is 540637631. The reversal of 540637620 is 26736045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731211 + ... + 731949.

It is an arithmetic number, because the mean of its divisors is an integer number (16083900).

Almost surely, 2^540637620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540637620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772027200).

540637620 is an abundant number, since it is smaller than the sum of its proper divisors (1003416780).

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

540637620 is a wasteful number, since it uses less digits than its factorization.

540637620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 540637620 is about 23251.6154277504. The cubic root of 540637620 is about 814.6456713100.

The spelling of 540637620 in words is "five hundred forty million, six hundred thirty-seven thousand, six hundred twenty".