20426442002 has 64 divisors (see below), whose sum is σ = 32964378624. Its totient is φ = 9472256640.

The previous prime is 20426441999. The next prime is 20426442011. The reversal of 20426442002 is 20024462402.

It is a happy number.

It is a super-2 number, since 2×20426442002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89984213 + ... + 89984439.

It is an arithmetic number, because the mean of its divisors is an integer number (515068416).

Almost surely, 2^20426442002 is an apocalyptic number.

20426442002 is a deficient number, since it is larger than the sum of its proper divisors (12537936622).

20426442002 is a wasteful number, since it uses less digits than its factorization.

20426442002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its (nonzero) digits is 6144, while the sum is 26.

The spelling of 20426442002 in words is "twenty billion, four hundred twenty-six million, four hundred forty-two thousand, two".