204420401001 has 32 divisors (see below), whose sum is σ = 303418368000. Its totient is φ = 136022547024.

The previous prime is 204420400997. The next prime is 204420401051. The reversal of 204420401001 is 100104024402.

204420401001 is a `hidden beast` number, since 204 + 420 + 40 + 1 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 204420401001 - 2² = 204420400997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204420401051) 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, 38720680 + ... + 38725958.

It is an arithmetic number, because the mean of its divisors is an integer number (9481824000).

Almost surely, 2^204420401001 is an apocalyptic number.

It is an amenable number.

204420401001 is a deficient number, since it is larger than the sum of its proper divisors (98997966999).

204420401001 is a wasteful number, since it uses less digits than its factorization.

204420401001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730 (or 7724 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 204420401001 its reverse (100104024402), we get a palindrome (304524425403).

The spelling of 204420401001 in words is "two hundred four billion, four hundred twenty million, four hundred one thousand, one".