540404502 has 64 divisors (see below), whose sum is σ = 1224840960. Its totient is φ = 157449600.

The previous prime is 540404497. The next prime is 540404509. The reversal of 540404502 is 205404045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540404509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633108 + ... + 633960.

It is an arithmetic number, because the mean of its divisors is an integer number (19138140).

Almost surely, 2^540404502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540404502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612420480).

540404502 is an abundant number, since it is smaller than the sum of its proper divisors (684436458).

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

540404502 is a wasteful number, since it uses less digits than its factorization.

540404502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 540404502 is about 23246.6019452306. The cubic root of 540404502 is about 814.5285652210.

Adding to 540404502 its reverse (205404045), we get a palindrome (745808547).

The spelling of 540404502 in words is "five hundred forty million, four hundred four thousand, five hundred two".