203116040 has 16 divisors (see below), whose sum is σ = 457011180. Its totient is φ = 81246400.

The previous prime is 203116037. The next prime is 203116049. The reversal of 203116040 is 40611302.

It can be written as a sum of positive squares in 2 ways, for example, as 191158276 + 11957764 = 13826^2 + 3458^2 .

It is a super-2 number, since 2×203116040² = 82512251410563200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203116049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2538911 + ... + 2538990.

Almost surely, 2^203116040 is an apocalyptic number.

203116040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203116040 is an abundant number, since it is smaller than the sum of its proper divisors (253895140).

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

203116040 is a wasteful number, since it uses less digits than its factorization.

203116040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077912 (or 5077908 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 203116040 is about 14251.8784726786. The cubic root of 203116040 is about 587.8250285379.

Adding to 203116040 its reverse (40611302), we get a palindrome (243727342).

The spelling of 203116040 in words is "two hundred three million, one hundred sixteen thousand, forty".