203140420 has 24 divisors (see below), whose sum is σ = 487537344. Its totient is φ = 69648096.

The previous prime is 203140417. The next prime is 203140459. The reversal of 203140420 is 24041302.

It is a junction number, because it is equal to n+sod(n) for n = 203140394 and 203140403.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 725362 + ... + 725641.

It is an arithmetic number, because the mean of its divisors is an integer number (20314056).

Almost surely, 2^203140420 is an apocalyptic number.

203140420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203140420 is an abundant number, since it is smaller than the sum of its proper divisors (284396924).

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

203140420 is a wasteful number, since it uses less digits than its factorization.

203140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451019 (or 1451017 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 203140420 is about 14252.7337728592. The cubic root of 203140420 is about 587.8485464588.

Adding to 203140420 its reverse (24041302), we get a palindrome (227181722).

The spelling of 203140420 in words is "two hundred three million, one hundred forty thousand, four hundred twenty".