40113843 has 32 divisors (see below), whose sum is σ = 67080192. Its totient is φ = 20714400.

The previous prime is 40113841. The next prime is 40113847. The reversal of 40113843 is 34831104.

It is not a de Polignac number, because 40113843 - 2¹ = 40113841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40113841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48330 + ... + 49152.

It is an arithmetic number, because the mean of its divisors is an integer number (2096256).

Almost surely, 2^40113843 is an apocalyptic number.

40113843 is a deficient number, since it is larger than the sum of its proper divisors (26966349).

40113843 is a wasteful number, since it uses less digits than its factorization.

40113843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40113843 is about 6333.5490050997. The cubic root of 40113843 is about 342.3193300062.

Adding to 40113843 its reverse (34831104), we get a palindrome (74944947).

The spelling of 40113843 in words is "forty million, one hundred thirteen thousand, eight hundred forty-three".