40002141 has 8 divisors (see below), whose sum is σ = 53365600. Its totient is φ = 26653392.

The previous prime is 40002133. The next prime is 40002191. The reversal of 40002141 is 14120004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40002141 - 2³ = 40002133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002191) 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, 7710 + ... + 11808.

It is an arithmetic number, because the mean of its divisors is an integer number (6670700).

Almost surely, 2^40002141 is an apocalyptic number.

It is an amenable number.

40002141 is a deficient number, since it is larger than the sum of its proper divisors (13363459).

40002141 is a wasteful number, since it uses less digits than its factorization.

40002141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 40002141 is about 6324.7245789837. The cubic root of 40002141 is about 342.0012909906.

Adding to 40002141 its reverse (14120004), we get a palindrome (54122145).

The spelling of 40002141 in words is "forty million, two thousand, one hundred forty-one".