20445440301402 has 64 divisors (see below), whose sum is σ = 44459672148864. Its totient is φ = 6244061552640.

The previous prime is 20445440301401. The next prime is 20445440301413. The reversal of 20445440301402 is 20410304454402.

It is not an unprimeable number, because it can be changed into a prime (20445440301401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16334568 + ... + 17541635.

It is an arithmetic number, because the mean of its divisors is an integer number (694682377326).

Almost surely, 2^{20445440301402} is an apocalyptic number.

20445440301402 is an abundant number, since it is smaller than the sum of its proper divisors (24014231847462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20445440301402 is a wasteful number, since it uses less digits than its factorization.

20445440301402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33876383.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 20445440301402 its reverse (20410304454402), we get a palindrome (40855744755804).

The spelling of 20445440301402 in words is "twenty trillion, four hundred forty-five billion, four hundred forty million, three hundred one thousand, four hundred two".