20404243410 has 32 divisors (see below), whose sum is σ = 49659910272. Its totient is φ = 5364495360.

The previous prime is 20404243403. The next prime is 20404243411. The reversal of 20404243410 is 1434240402.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20404243411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4787599 + ... + 4791858.

It is an arithmetic number, because the mean of its divisors is an integer number (1551872196).

Almost surely, 2^20404243410 is an apocalyptic number.

20404243410 is an abundant number, since it is smaller than the sum of its proper divisors (29255666862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20404243410 is a wasteful number, since it uses less digits than its factorization.

20404243410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579538.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20404243410 its reverse (1434240402), we get a palindrome (21838483812).

The spelling of 20404243410 in words is "twenty billion, four hundred four million, two hundred forty-three thousand, four hundred ten".