40865442 has 8 divisors (see below), whose sum is σ = 81730896. Its totient is φ = 13621812.

The previous prime is 40865441. The next prime is 40865443. The reversal of 40865442 is 24456804.

It is an interprime number because it is at equal distance from previous prime (40865441) and next prime (40865443).

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

40865442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (40865441) 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, 3405448 + ... + 3405459.

It is an arithmetic number, because the mean of its divisors is an integer number (10216362).

Almost surely, 2^40865442 is an apocalyptic number.

40865442 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.

40865442 is a wasteful number, since it uses less digits than its factorization.

40865442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810912.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 40865442 is about 6392.6083878179. The cubic root of 40865442 is about 344.4440868613. Note that the first 3 decimals are identical.

The spelling of 40865442 in words is "forty million, eight hundred sixty-five thousand, four hundred forty-two".