1038600000 has 252 divisors, whose sum is σ = 3727409868. Its totient is φ = 276480000.

The previous prime is 1038599993. The next prime is 1038600001. The reversal of 1038600000 is 68301.

It can be written as a sum of positive squares in 6 ways, for example, as 523128384 + 515471616 = 22872^2 + 22704^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038600001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1799712 + ... + 1800288.

It is an arithmetic number, because the mean of its divisors is an integer number (14791309).

Almost surely, 2^1038600000 is an apocalyptic number.

1038600000 is a gapful number since it is divisible by the number (10) 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 1038600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863704934).

1038600000 is an abundant number, since it is smaller than the sum of its proper divisors (2688809868).

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

1038600000 is an frugal number, since it uses more digits than its factorization.

1038600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1038600000 is about 32227.3176047899. The cubic root of 1038600000 is about 1012.7045768607.

Adding to 1038600000 its reverse (68301), we get a palindrome (1038668301).

The spelling of 1038600000 in words is "one billion, thirty-eight million, six hundred thousand".