40141791 has 8 divisors (see below), whose sum is σ = 59469360. Its totient is φ = 26761176.

The previous prime is 40141733. The next prime is 40141817. The reversal of 40141791 is 19714104.

It is not a de Polignac number, because 40141791 - 2⁶ = 40141727 is a prime.

It is a super-2 number, since 2×40141791² = 3222726769375362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1486733 = 40141791 / (4 + 0 + 1 + 4 + 1 + 7 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40141691) 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, 743340 + ... + 743393.

It is an arithmetic number, because the mean of its divisors is an integer number (7433670).

Almost surely, 2^40141791 is an apocalyptic number.

40141791 is a deficient number, since it is larger than the sum of its proper divisors (19327569).

40141791 is a wasteful number, since it uses less digits than its factorization.

40141791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486742 (or 1486736 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 40141791 is about 6335.7549668528. The cubic root of 40141791 is about 342.3988114596.

Adding to 40141791 its reverse (19714104), we get a palindrome (59855895).

The spelling of 40141791 in words is "forty million, one hundred forty-one thousand, seven hundred ninety-one".