20340210404 has 6 divisors (see below), whose sum is σ = 35595368214. Its totient is φ = 10170105200.

The previous prime is 20340210367. The next prime is 20340210409. The reversal of 20340210404 is 40401204302.

It can be written as a sum of positive squares in only one way, i.e., 19960038400 + 380172004 = 141280^2 + 19498^2 .

It is not an unprimeable number, because it can be changed into a prime (20340210409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2542526297 + ... + 2542526304.

It is an arithmetic number, because the mean of its divisors is an integer number (5932561369).

Almost surely, 2^20340210404 is an apocalyptic number.

It is an amenable number.

20340210404 is a deficient number, since it is larger than the sum of its proper divisors (15255157810).

20340210404 is a wasteful number, since it uses less digits than its factorization.

20340210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085052605 (or 5085052603 counting only the distinct ones).

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

Adding to 20340210404 its reverse (40401204302), we get a palindrome (60741414706).

The spelling of 20340210404 in words is "twenty billion, three hundred forty million, two hundred ten thousand, four hundred four".