40008842 has 8 divisors (see below), whose sum is σ = 60226176. Its totient is φ = 19933452.

The previous prime is 40008833. The next prime is 40008847. The reversal of 40008842 is 24880004.

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

It is not an unprimeable number, because it can be changed into a prime (40008847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34778 + ... + 35909.

It is an arithmetic number, because the mean of its divisors is an integer number (7528272).

Almost surely, 2^40008842 is an apocalyptic number.

40008842 is a deficient number, since it is larger than the sum of its proper divisors (20217334).

40008842 is a wasteful number, since it uses less digits than its factorization.

40008842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70972.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 40008842 is about 6325.2543031881. The cubic root of 40008842 is about 342.0203868243.

Adding to 40008842 its reverse (24880004), we get a palindrome (64888846).

The spelling of 40008842 in words is "forty million, eight thousand, eight hundred forty-two".