40708140 has 96 divisors (see below), whose sum is σ = 127782144. Its totient is φ = 9596160.

The previous prime is 40708133. The next prime is 40708159. The reversal of 40708140 is 4180704.

It is a self number, because there is not a number n which added to its sum of digits gives 40708140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23587 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (1331064).

Almost surely, 2^40708140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40708140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63891072).

40708140 is an abundant number, since it is smaller than the sum of its proper divisors (87074004).

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

40708140 is a wasteful number, since it uses less digits than its factorization.

40708140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 40708140 is about 6380.2930967159. The cubic root of 40708140 is about 344.0015661548.

Adding to 40708140 its reverse (4180704), we get a palindrome (44888844).

The spelling of 40708140 in words is "forty million, seven hundred eight thousand, one hundred forty".