20440422402 has 16 divisors (see below), whose sum is σ = 41004355872. Its totient is φ = 6792888960.

The previous prime is 20440422349. The next prime is 20440422419. The reversal of 20440422402 is 20422404402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144143 + ... + 5148114.

It is an arithmetic number, because the mean of its divisors is an integer number (2562772242).

Almost surely, 2^20440422402 is an apocalyptic number.

20440422402 is an abundant number, since it is smaller than the sum of its proper divisors (20563933470).

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

20440422402 is a wasteful number, since it uses less digits than its factorization.

20440422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292593.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20440422402 its reverse (20422404402), we get a palindrome (40862826804).

The spelling of 20440422402 in words is "twenty billion, four hundred forty million, four hundred twenty-two thousand, four hundred two".