203130396 has 96 divisors (see below), whose sum is σ = 608832000. Its totient is φ = 57366144.

The previous prime is 203130379. The next prime is 203130401. The reversal of 203130396 is 693031302.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 65775 + ... + 68793.

It is an arithmetic number, because the mean of its divisors is an integer number (6342000).

Almost surely, 2^203130396 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 203130396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304416000).

203130396 is an abundant number, since it is smaller than the sum of its proper divisors (405701604).

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

203130396 is a wasteful number, since it uses less digits than its factorization.

203130396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128 (or 3120 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 203130396 is about 14252.3821166849. The cubic root of 203130396 is about 587.8388771362.

Adding to 203130396 its reverse (693031302), we get a palindrome (896161698).

The spelling of 203130396 in words is "two hundred three million, one hundred thirty thousand, three hundred ninety-six".