40180903 has 4 divisors (see below), whose sum is σ = 45921040. Its totient is φ = 34440768.

The previous prime is 40180871. The next prime is 40180937. The reversal of 40180903 is 30908104.

40180903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40180903 - 2⁵ = 40180871 is a prime.

It is a super-2 number, since 2×40180903² = 3229009931790818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40180993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2870058 + ... + 2870071.

It is an arithmetic number, because the mean of its divisors is an integer number (11480260).

Almost surely, 2^40180903 is an apocalyptic number.

40180903 is a deficient number, since it is larger than the sum of its proper divisors (5740137).

40180903 is an equidigital number, since it uses as much as digits as its factorization.

40180903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5740136.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 40180903 is about 6338.8408246303. The cubic root of 40180903 is about 342.5099803510.

The spelling of 40180903 in words is "forty million, one hundred eighty thousand, nine hundred three".