20330022400 has 120 divisors (see below), whose sum is σ = 50470858944. Its totient is φ = 8115609600.

The previous prime is 20330022389. The next prime is 20330022421. The reversal of 20330022400 is 422003302.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 7845105 + ... + 7847695.

Almost surely, 2^20330022400 is an apocalyptic number.

20330022400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20330022400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25235429472).

20330022400 is an abundant number, since it is smaller than the sum of its proper divisors (30140836544).

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

20330022400 is an equidigital number, since it uses as much as digits as its factorization.

20330022400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20330022400 its reverse (422003302), we get a palindrome (20752025702).

The spelling of 20330022400 in words is "twenty billion, three hundred thirty million, twenty-two thousand, four hundred".