40020224999 has 4 divisors (see below), whose sum is σ = 40093388664. Its totient is φ = 39947061336.

The previous prime is 40020224971. The next prime is 40020225019. The reversal of 40020224999 is 99942202004.

40020224999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40020224999 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 (40020224929) 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, 36581012 + ... + 36582105.

It is an arithmetic number, because the mean of its divisors is an integer number (10023347166).

Almost surely, 2^40020224999 is an apocalyptic number.

40020224999 is a deficient number, since it is larger than the sum of its proper divisors (73163665).

40020224999 is an equidigital number, since it uses as much as digits as its factorization.

40020224999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73163664.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 40020224999 in words is "forty billion, twenty million, two hundred twenty-four thousand, nine hundred ninety-nine".