40320141 has 16 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 25196288.

The previous prime is 40320139. The next prime is 40320151. The reversal of 40320141 is 14102304.

It is a cyclic number.

It is not a de Polignac number, because 40320141 - 2¹ = 40320139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40320141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12250 + ... + 15188.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^40320141 is an apocalyptic number.

It is an amenable number.

40320141 is a deficient number, since it is larger than the sum of its proper divisors (16833459).

40320141 is a wasteful number, since it uses less digits than its factorization.

40320141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40320141 is about 6349.8142492517. The cubic root of 40320141 is about 342.9051550074.

Adding to 40320141 its reverse (14102304), we get a palindrome (54422445).

The spelling of 40320141 in words is "forty million, three hundred twenty thousand, one hundred forty-one".