20400233413 has 8 divisors (see below), whose sum is σ = 23318396928. Its totient is φ = 17483031024.

The previous prime is 20400233377. The next prime is 20400233423. The reversal of 20400233413 is 31433200402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20400233413 - 2¹⁷ = 20400102341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400233423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194206 + ... + 280207.

It is an arithmetic number, because the mean of its divisors is an integer number (2914799616).

Almost surely, 2^20400233413 is an apocalyptic number.

It is an amenable number.

20400233413 is a deficient number, since it is larger than the sum of its proper divisors (2918163515).

20400233413 is an equidigital number, since it uses as much as digits as its factorization.

20400233413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480563.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20400233413 its reverse (31433200402), we get a palindrome (51833433815).

The spelling of 20400233413 in words is "twenty billion, four hundred million, two hundred thirty-three thousand, four hundred thirteen".