20401204430 has 8 divisors (see below), whose sum is σ = 36722167992. Its totient is φ = 8160481768.

The previous prime is 20401204427. The next prime is 20401204477. The reversal of 20401204430 is 3440210402.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020060212 + ... + 1020060231.

It is an arithmetic number, because the mean of its divisors is an integer number (4590270999).

Almost surely, 2^20401204430 is an apocalyptic number.

20401204430 is a deficient number, since it is larger than the sum of its proper divisors (16320963562).

20401204430 is a wasteful number, since it uses less digits than its factorization.

20401204430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040120450.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20401204430 its reverse (3440210402), we get a palindrome (23841414832).

The spelling of 20401204430 in words is "twenty billion, four hundred one million, two hundred four thousand, four hundred thirty".