203032140 has 96 divisors (see below), whose sum is σ = 580789440. Its totient is φ = 52985856.

The previous prime is 203032079. The next prime is 203032153. The reversal of 203032140 is 41230302.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1030522 + ... + 1030718.

It is an arithmetic number, because the mean of its divisors is an integer number (6049890).

Almost surely, 2^203032140 is an apocalyptic number.

203032140 is a gapful number since it is divisible by the number (20) 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 203032140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290394720).

203032140 is an abundant number, since it is smaller than the sum of its proper divisors (377757300).

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

203032140 is a wasteful number, since it uses less digits than its factorization.

203032140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 203032140 is about 14248.9346970221. The cubic root of 203032140 is about 587.7440808655.

Adding to 203032140 its reverse (41230302), we get a palindrome (244262442).

The spelling of 203032140 in words is "two hundred three million, thirty-two thousand, one hundred forty".