40474838 has 4 divisors (see below), whose sum is σ = 60712260. Its totient is φ = 20237418.

The previous prime is 40474829. The next prime is 40474843. The reversal of 40474838 is 83847404.

40474838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40474838² = 3276425022252488, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10118708 + ... + 10118711.

It is an arithmetic number, because the mean of its divisors is an integer number (15178065).

Almost surely, 2^40474838 is an apocalyptic number.

40474838 is a deficient number, since it is larger than the sum of its proper divisors (20237422).

40474838 is a wasteful number, since it uses less digits than its factorization.

40474838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20237421.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 40474838 is about 6361.9838101020. The cubic root of 40474838 is about 343.3431387738.

The spelling of 40474838 in words is "forty million, four hundred seventy-four thousand, eight hundred thirty-eight".