40220013445 has 4 divisors (see below), whose sum is σ = 48264016140. Its totient is φ = 32176010752.

The previous prime is 40220013403. The next prime is 40220013461. The reversal of 40220013445 is 54431002204.

It is a happy number.

40220013445 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 can be written as a sum of positive squares in 2 ways, for example, as 30499828164 + 9720185281 = 174642^2 + 98591^2 .

It is a cyclic number.

It is not a de Polignac number, because 40220013445 - 2⁹ = 40220012933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022001340 + ... + 4022001349.

It is an arithmetic number, because the mean of its divisors is an integer number (12066004035).

Almost surely, 2^40220013445 is an apocalyptic number.

It is an amenable number.

40220013445 is a deficient number, since it is larger than the sum of its proper divisors (8044002695).

40220013445 is an equidigital number, since it uses as much as digits as its factorization.

40220013445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044002694.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 40220013445 its reverse (54431002204), we get a palindrome (94651015649).

The spelling of 40220013445 in words is "forty billion, two hundred twenty million, thirteen thousand, four hundred forty-five".