40868742 has 8 divisors (see below), whose sum is σ = 81737496. Its totient is φ = 13622912.

The previous prime is 40868699. The next prime is 40868747. The reversal of 40868742 is 24786804.

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

40868742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40868742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40868747) 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, 3405723 + ... + 3405734.

It is an arithmetic number, because the mean of its divisors is an integer number (10217187).

Almost surely, 2^40868742 is an apocalyptic number.

40868742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40868742 is a wasteful number, since it uses less digits than its factorization.

40868742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811462.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 40868742 is about 6392.8664932094. The cubic root of 40868742 is about 344.4533582231.

The spelling of 40868742 in words is "forty million, eight hundred sixty-eight thousand, seven hundred forty-two".