40401318 has 16 divisors (see below), whose sum is σ = 82773936. Its totient is φ = 13138560.

The previous prime is 40401301. The next prime is 40401349. The reversal of 40401318 is 81310404.

40401318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40401318² = 3264532992274248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40401294 and 40401303.

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 in 7 ways as a sum of consecutive naturals, for example, 81871 + ... + 82362.

It is an arithmetic number, because the mean of its divisors is an integer number (5173371).

Almost surely, 2^40401318 is an apocalyptic number.

40401318 is an abundant number, since it is smaller than the sum of its proper divisors (42372618).

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

40401318 is a wasteful number, since it uses less digits than its factorization.

40401318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164279.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 40401318 is about 6356.2031119215. The cubic root of 40401318 is about 343.1351256961.

The spelling of 40401318 in words is "forty million, four hundred one thousand, three hundred eighteen".