40316140 has 24 divisors (see below), whose sum is σ = 85417920. Its totient is φ = 15982848.

The previous prime is 40316117. The next prime is 40316141. The reversal of 40316140 is 4161304.

It is a happy number.

It is a super-2 number, since 2×40316140² = 3250782288999200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40316141) 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, 6660 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (3559080).

Almost surely, 2^40316140 is an apocalyptic number.

It is an amenable number.

40316140 is an abundant number, since it is smaller than the sum of its proper divisors (45101780).

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

40316140 is a wasteful number, since it uses less digits than its factorization.

40316140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961 (or 17959 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40316140 is about 6349.4991928498. The cubic root of 40316140 is about 342.8938123809.

Adding to 40316140 its reverse (4161304), we get a palindrome (44477444).

The spelling of 40316140 in words is "forty million, three hundred sixteen thousand, one hundred forty".