40141491 has 16 divisors (see below), whose sum is σ = 57948576. Its totient is φ = 24569856.

The previous prime is 40141447. The next prime is 40141499. The reversal of 40141491 is 19414104.

It is not a de Polignac number, because 40141491 - 2⁹ = 40140979 is a prime.

It is a super-2 number, since 2×40141491² = 3222678599406162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40141499) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4861 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (3621786).

Almost surely, 2^40141491 is an apocalyptic number.

40141491 is a deficient number, since it is larger than the sum of its proper divisors (17807085).

40141491 is a wasteful number, since it uses less digits than its factorization.

40141491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5542.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 40141491 is about 6335.7312916506. The cubic root of 40141491 is about 342.3979584840.

Adding to 40141491 its reverse (19414104), we get a palindrome (59555595).

The spelling of 40141491 in words is "forty million, one hundred forty-one thousand, four hundred ninety-one".