20040232130400 has 72 divisors (see below), whose sum is σ = 65230955592264. Its totient is φ = 5344061900800.

The previous prime is 20040232130381. The next prime is 20040232130467. The reversal of 20040232130400 is 403123204002.

It is a super-2 number, since 2×20040232130400² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4175045961 + ... + 4175050760.

It is an arithmetic number, because the mean of its divisors is an integer number (905985494337).

Almost surely, 2^{20040232130400} is an apocalyptic number.

20040232130400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040232130400 is an abundant number, since it is smaller than the sum of its proper divisors (45190723461864).

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

20040232130400 is a wasteful number, since it uses less digits than its factorization.

20040232130400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350096744 (or 8350096731 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20040232130400 its reverse (403123204002), we get a palindrome (20443355334402).

The spelling of 20040232130400 in words is "twenty trillion, forty billion, two hundred thirty-two million, one hundred thirty thousand, four hundred".