40455842 has 8 divisors (see below), whose sum is σ = 69352896. Its totient is φ = 17338212.

The previous prime is 40455817. The next prime is 40455847. The reversal of 40455842 is 24855404.

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

It is a junction number, because it is equal to n+sod(n) for n = 40455799 and 40455808.

It is not an unprimeable number, because it can be changed into a prime (40455847) 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, 1444838 + ... + 1444865.

It is an arithmetic number, because the mean of its divisors is an integer number (8669112).

Almost surely, 2^40455842 is an apocalyptic number.

40455842 is a deficient number, since it is larger than the sum of its proper divisors (28897054).

40455842 is a wasteful number, since it uses less digits than its factorization.

40455842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889712.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 40455842 is about 6360.4907043403. The cubic root of 40455842 is about 343.2894167809.

The spelling of 40455842 in words is "forty million, four hundred fifty-five thousand, eight hundred forty-two".