40024871 has 6 divisors (see below), whose sum is σ = 40896840. Its totient is φ = 39171116.

The previous prime is 40024781. The next prime is 40024877. The reversal of 40024871 is 17842004.

It is a de Polignac number, because none of the positive numbers 2^k-40024871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40024871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40024877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6851 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (6816140).

Almost surely, 2^40024871 is an apocalyptic number.

40024871 is a deficient number, since it is larger than the sum of its proper divisors (871969).

40024871 is an equidigital number, since it uses as much as digits as its factorization.

40024871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18213 (or 18166 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 40024871 is about 6326.5212399865. The cubic root of 40024871 is about 342.0660560026.

Adding to 40024871 its reverse (17842004), we get a palindrome (57866875).

The spelling of 40024871 in words is "forty million, twenty-four thousand, eight hundred seventy-one".