40008141 has 8 divisors (see below), whose sum is σ = 59271360. Its totient is φ = 26672076.

The previous prime is 40008121. The next prime is 40008149. The reversal of 40008141 is 14180004.

It is not a de Polignac number, because 40008141 - 2⁷ = 40008013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40008149) 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, 740865 + ... + 740918.

It is an arithmetic number, because the mean of its divisors is an integer number (7408920).

Almost surely, 2^40008141 is an apocalyptic number.

It is an amenable number.

40008141 is a deficient number, since it is larger than the sum of its proper divisors (19263219).

40008141 is a wasteful number, since it uses less digits than its factorization.

40008141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481792 (or 1481786 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 40008141 is about 6325.1988901536. The cubic root of 40008141 is about 342.0183892851.

Adding to 40008141 its reverse (14180004), we get a palindrome (54188145).

The spelling of 40008141 in words is "forty million, eight thousand, one hundred forty-one".