40818837 has 8 divisors (see below), whose sum is σ = 54459136. Its totient is φ = 27195552.

The previous prime is 40818829. The next prime is 40818839. The reversal of 40818837 is 73881804.

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

It is not a de Polignac number, because 40818837 - 2³ = 40818829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40818795 and 40818804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40818839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3228 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (6807392).

Almost surely, 2^40818837 is an apocalyptic number.

It is an amenable number.

40818837 is a deficient number, since it is larger than the sum of its proper divisors (13640299).

40818837 is a wasteful number, since it uses less digits than its factorization.

40818837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 40818837 is about 6388.9621222856. The cubic root of 40818837 is about 344.3130966144.

The spelling of 40818837 in words is "forty million, eight hundred eighteen thousand, eight hundred thirty-seven".