40707191 has 12 divisors (see below), whose sum is σ = 48133080. Its totient is φ = 34317360.

The previous prime is 40707179. The next prime is 40707223. The reversal of 40707191 is 19170704.

It is not a de Polignac number, because 40707191 - 2¹⁴ = 40690807 is a prime.

It is a super-2 number, since 2×40707191² = 3314150798220962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40707791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3821 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (4011090).

Almost surely, 2^40707191 is an apocalyptic number.

40707191 is a deficient number, since it is larger than the sum of its proper divisors (7425889).

40707191 is a wasteful number, since it uses less digits than its factorization.

40707191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694 (or 13687 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 40707191 is about 6380.2187266582. The cubic root of 40707191 is about 343.9988929791.

Adding to 40707191 its reverse (19170704), we get a palindrome (59877895).

The spelling of 40707191 in words is "forty million, seven hundred seven thousand, one hundred ninety-one".