40404858 has 24 divisors (see below), whose sum is σ = 87506208. Its totient is φ = 12431952.

The previous prime is 40404853. The next prime is 40404863. The reversal of 40404858 is 85840404.

40404858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40404853) and next prime (40404863).

It is not an unprimeable number, because it can be changed into a prime (40404853) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 18910 + ... + 20937.

It is an arithmetic number, because the mean of its divisors is an integer number (3646092).

Almost surely, 2^40404858 is an apocalyptic number.

40404858 is an abundant number, since it is smaller than the sum of its proper divisors (47101350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40404858 is a wasteful number, since it uses less digits than its factorization.

40404858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39878 (or 39865 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 40404858 is about 6356.4815739527. The cubic root of 40404858 is about 343.1451473400.

The spelling of 40404858 in words is "forty million, four hundred four thousand, eight hundred fifty-eight".