20445412300 has 18 divisors (see below), whose sum is σ = 44366544908. Its totient is φ = 8178164880.

The previous prime is 20445412291. The next prime is 20445412301. The reversal of 20445412300 is 321454402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20445412301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102226962 + ... + 102227161.

Almost surely, 2^20445412300 is an apocalyptic number.

20445412300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20445412300 is an abundant number, since it is smaller than the sum of its proper divisors (23921132608).

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

20445412300 is a wasteful number, since it uses less digits than its factorization.

20445412300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204454137 (or 204454130 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20445412300 its reverse (321454402), we get a palindrome (20766866702).

The spelling of 20445412300 in words is "twenty billion, four hundred forty-five million, four hundred twelve thousand, three hundred".