40734020221 has 8 divisors (see below), whose sum is σ = 41473940544. Its totient is φ = 39999016800.

The previous prime is 40734020179. The next prime is 40734020237. The reversal of 40734020221 is 12202043704.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40734020221 - 2⁹ = 40734019709 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 (40734020251) 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, 1212505 + ... + 1245646.

It is an arithmetic number, because the mean of its divisors is an integer number (5184242568).

Almost surely, 2^40734020221 is an apocalyptic number.

It is an amenable number.

40734020221 is a deficient number, since it is larger than the sum of its proper divisors (739920323).

40734020221 is a wasteful number, since it uses less digits than its factorization.

40734020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458451.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 40734020221 its reverse (12202043704), we get a palindrome (52936063925).

The spelling of 40734020221 in words is "forty billion, seven hundred thirty-four million, twenty thousand, two hundred twenty-one".