12440100 has 36 divisors (see below), whose sum is σ = 35994224. Its totient is φ = 3317280.

The previous prime is 12440093. The next prime is 12440111. The reversal of 12440100 is 104421.

12440100 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 20434 + ... + 21033.

Almost surely, 2^12440100 is an apocalyptic number.

12440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440100 is an abundant number, since it is smaller than the sum of its proper divisors (23554124).

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

12440100 is a wasteful number, since it uses less digits than its factorization.

12440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41484 (or 41477 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12440100 is about 3527.0525938806. The cubic root of 12440100 is about 231.7081397264.

Adding to 12440100 its reverse (104421), we get a palindrome (12544521).

The spelling of 12440100 in words is "twelve million, four hundred forty thousand, one hundred".