40318404 has 48 divisors (see below), whose sum is σ = 107856000. Its totient is φ = 11483136.

The previous prime is 40318393. The next prime is 40318409. The reversal of 40318404 is 40481304.

40318404 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 2×40318404² = 3251147402214432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40318409) 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 15 ways as a sum of consecutive naturals, for example, 37182 + ... + 38250.

It is an arithmetic number, because the mean of its divisors is an integer number (2247000).

Almost surely, 2^40318404 is an apocalyptic number.

It is an amenable number.

40318404 is an abundant number, since it is smaller than the sum of its proper divisors (67537596).

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

40318404 is a wasteful number, since it uses less digits than its factorization.

40318404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 40318404 is about 6349.6774721241. The cubic root of 40318404 is about 342.9002307951.

Adding to 40318404 its reverse (40481304), we get a palindrome (80799708).

The spelling of 40318404 in words is "forty million, three hundred eighteen thousand, four hundred four".