20022040004 has 12 divisors (see below), whose sum is σ = 35612973228. Its totient is φ = 9846904800.

The previous prime is 20022039979. The next prime is 20022040009. The reversal of 20022040004 is 40004022002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11261454400 + 8760585604 = 106120^2 + 93598^2 .

It is not an unprimeable number, because it can be changed into a prime (20022040009) 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, 41028527 + ... + 41029014.

It is an arithmetic number, because the mean of its divisors is an integer number (2967747769).

Almost surely, 2^20022040004 is an apocalyptic number.

It is an amenable number.

20022040004 is a deficient number, since it is larger than the sum of its proper divisors (15590933224).

20022040004 is a wasteful number, since it uses less digits than its factorization.

20022040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82057606 (or 82057604 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20022040004 its reverse (40004022002), we get a palindrome (60026062006).

The spelling of 20022040004 in words is "twenty billion, twenty-two million, forty thousand, four".