12450324400 has 30 divisors (see below), whose sum is σ = 29911905332. Its totient is φ = 4980129600.

The previous prime is 12450324371. The next prime is 12450324407. The reversal of 12450324400 is 442305421.

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 (12450324407) 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, 15562506 + ... + 15563305.

Almost surely, 2^12450324400 is an apocalyptic number.

12450324400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12450324400 is an abundant number, since it is smaller than the sum of its proper divisors (17461580932).

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

12450324400 is a wasteful number, since it uses less digits than its factorization.

12450324400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31125829 (or 31125818 counting only the distinct ones).

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

Adding to 12450324400 its reverse (442305421), we get a palindrome (12892629821).

The spelling of 12450324400 in words is "twelve billion, four hundred fifty million, three hundred twenty-four thousand, four hundred".