40311140 has 12 divisors (see below), whose sum is σ = 84653436. Its totient is φ = 16124448.

The previous prime is 40311127. The next prime is 40311169. The reversal of 40311140 is 4111304.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27962944 + 12348196 = 5288^2 + 3514^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007759 + ... + 1007798.

It is an arithmetic number, because the mean of its divisors is an integer number (7054453).

Almost surely, 2^40311140 is an apocalyptic number.

It is an amenable number.

40311140 is an abundant number, since it is smaller than the sum of its proper divisors (44342296).

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

40311140 is a wasteful number, since it uses less digits than its factorization.

40311140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015566 (or 2015564 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 40311140 is about 6349.1054488014. The cubic root of 40311140 is about 342.8796365864.

Adding to 40311140 its reverse (4111304), we get a palindrome (44422444).

The spelling of 40311140 in words is "forty million, three hundred eleven thousand, one hundred forty".