40103939 has 8 divisors (see below), whose sum is σ = 40538400. Its totient is φ = 39672000.

The previous prime is 40103929. The next prime is 40103941. The reversal of 40103939 is 93930104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40103939 - 2⁸ = 40103683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40103909) 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 7 ways as a sum of consecutive naturals, for example, 52319 + ... + 53079.

It is an arithmetic number, because the mean of its divisors is an integer number (5067300).

Almost surely, 2^40103939 is an apocalyptic number.

40103939 is a deficient number, since it is larger than the sum of its proper divisors (434461).

40103939 is a wasteful number, since it uses less digits than its factorization.

40103939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 40103939 is about 6332.7670887220. The cubic root of 40103939 is about 342.2911551132.

The spelling of 40103939 in words is "forty million, one hundred three thousand, nine hundred thirty-nine".