20400130526 has 8 divisors (see below), whose sum is σ = 32400207360. Its totient is φ = 9600061408.

The previous prime is 20400130511. The next prime is 20400130529. The reversal of 20400130526 is 62503100402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400130529) 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, 300001886 + ... + 300001953.

It is an arithmetic number, because the mean of its divisors is an integer number (4050025920).

Almost surely, 2^20400130526 is an apocalyptic number.

20400130526 is a deficient number, since it is larger than the sum of its proper divisors (12000076834).

20400130526 is a wasteful number, since it uses less digits than its factorization.

20400130526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600003858.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20400130526 its reverse (62503100402), we get a palindrome (82903230928).

The spelling of 20400130526 in words is "twenty billion, four hundred million, one hundred thirty thousand, five hundred twenty-six".