40856842 has 8 divisors (see below), whose sum is σ = 65999556. Its totient is φ = 18856992.

The previous prime is 40856839. The next prime is 40856857. The reversal of 40856842 is 24865804.

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 292681 = 6369^2 + 541^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785683 + ... + 785734.

Almost surely, 2^40856842 is an apocalyptic number.

40856842 is a deficient number, since it is larger than the sum of its proper divisors (25142714).

40856842 is a wasteful number, since it uses less digits than its factorization.

40856842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571432.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 40856842 is about 6391.9357005527. The cubic root of 40856842 is about 344.4199227851.

The spelling of 40856842 in words is "forty million, eight hundred fifty-six thousand, eight hundred forty-two".