20134330400 has 72 divisors (see below), whose sum is σ = 51739969680. Its totient is φ = 7629845760.

The previous prime is 20134330393. The next prime is 20134330421. The reversal of 20134330400 is 403343102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 647114 + ... + 677513.

It is an arithmetic number, because the mean of its divisors is an integer number (718610690).

Almost surely, 2^20134330400 is an apocalyptic number.

20134330400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20134330400 is an abundant number, since it is smaller than the sum of its proper divisors (31605639280).

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

20134330400 is a wasteful number, since it uses less digits than its factorization.

20134330400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324666 (or 1324653 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20134330400 its reverse (403343102), we get a palindrome (20537673502).

The spelling of 20134330400 in words is "twenty billion, one hundred thirty-four million, three hundred thirty thousand, four hundred".