40005414221 has 4 divisors (see below), whose sum is σ = 40013512512. Its totient is φ = 39997315932.

The previous prime is 40005414187. The next prime is 40005414233. The reversal of 40005414221 is 12241450004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40005414221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005414821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4041731 + ... + 4051616.

It is an arithmetic number, because the mean of its divisors is an integer number (10003378128).

Almost surely, 2^40005414221 is an apocalyptic number.

It is an amenable number.

40005414221 is a deficient number, since it is larger than the sum of its proper divisors (8098291).

40005414221 is an equidigital number, since it uses as much as digits as its factorization.

40005414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8098290.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 40005414221 its reverse (12241450004), we get a palindrome (52246864225).

The spelling of 40005414221 in words is "forty billion, five million, four hundred fourteen thousand, two hundred twenty-one".