20442206401 has 8 divisors (see below), whose sum is σ = 21241946880. Its totient is φ = 19648788432.

The previous prime is 20442206377. The next prime is 20442206423. The reversal of 20442206401 is 10460224402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20442206401 - 2²³ = 20433817793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20442206431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1574035 + ... + 1586968.

It is an arithmetic number, because the mean of its divisors is an integer number (2655243360).

Almost surely, 2^20442206401 is an apocalyptic number.

It is an amenable number.

20442206401 is a deficient number, since it is larger than the sum of its proper divisors (799740479).

20442206401 is a wasteful number, since it uses less digits than its factorization.

20442206401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161255.

The product of its (nonzero) digits is 3072, while the sum is 25.

The spelling of 20442206401 in words is "twenty billion, four hundred forty-two million, two hundred six thousand, four hundred one".