538540000 has 60 divisors (see below), whose sum is σ = 1324938384. Its totient is φ = 215408000.

The previous prime is 538539997. The next prime is 538540001. The reversal of 538540000 is 45835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538540001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6537 + ... + 33463.

Almost surely, 2^538540000 is an apocalyptic number.

538540000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662469192).

538540000 is an abundant number, since it is smaller than the sum of its proper divisors (786398384).

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

538540000 is an equidigital number, since it uses as much as digits as its factorization.

538540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26957 (or 26934 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 538540000 is about 23206.4646165675. The cubic root of 538540000 is about 813.5907244725.

Adding to 538540000 its reverse (45835), we get a palindrome (538585835).

The spelling of 538540000 in words is "five hundred thirty-eight million, five hundred forty thousand".