20401401004 has 12 divisors (see below), whose sum is σ = 37802596104. Its totient is φ = 9600659264.

The previous prime is 20401401001. The next prime is 20401401019. The reversal of 20401401004 is 40010410402.

It is not an unprimeable number, because it can be changed into a prime (20401401001) 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, 150010234 + ... + 150010369.

It is an arithmetic number, because the mean of its divisors is an integer number (3150216342).

Almost surely, 2^20401401004 is an apocalyptic number.

It is an amenable number.

20401401004 is a deficient number, since it is larger than the sum of its proper divisors (17401195100).

20401401004 is a wasteful number, since it uses less digits than its factorization.

20401401004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300020624 (or 300020622 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20401401004 its reverse (40010410402), we get a palindrome (60411811406).

The spelling of 20401401004 in words is "twenty billion, four hundred one million, four hundred one thousand, four".