40494855 has 8 divisors (see below), whose sum is σ = 64791792. Its totient is φ = 21597248.

The previous prime is 40494821. The next prime is 40494859. The reversal of 40494855 is 55849404.

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

It is a cyclic number.

It is not a de Polignac number, because 40494855 - 2⁹ = 40494343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40494859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349814 + ... + 1349843.

It is an arithmetic number, because the mean of its divisors is an integer number (8098974).

Almost surely, 2^40494855 is an apocalyptic number.

40494855 is a deficient number, since it is larger than the sum of its proper divisors (24296937).

40494855 is a wasteful number, since it uses less digits than its factorization.

40494855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699665.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 40494855 is about 6363.5567884635. The cubic root of 40494855 is about 343.3997300396.

It can be divided in two parts, 404 and 94855, that added together give a palindrome (95259).

The spelling of 40494855 in words is "forty million, four hundred ninety-four thousand, eight hundred fifty-five".