40043101 has 16 divisors (see below), whose sum is σ = 47472768. Its totient is φ = 33082080.

The previous prime is 40043063. The next prime is 40043111. The reversal of 40043101 is 10134004.

It is a de Polignac number, because none of the positive numbers 2^k-40043101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043111) 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 15 ways as a sum of consecutive naturals, for example, 482406 + ... + 482488.

It is an arithmetic number, because the mean of its divisors is an integer number (2967048).

Almost surely, 2^40043101 is an apocalyptic number.

40043101 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40043101 is a deficient number, since it is larger than the sum of its proper divisors (7429667).

40043101 is an frugal number, since it uses more digits than its factorization.

40043101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40043101 is about 6327.9618361681. The cubic root of 40043101 is about 342.1179813642.

Adding to 40043101 its reverse (10134004), we get a palindrome (50177105).

The spelling of 40043101 in words is "forty million, forty-three thousand, one hundred one".