12478900 has 36 divisors (see below), whose sum is σ = 30949408. Its totient is φ = 4278240.

The previous prime is 12478891. The next prime is 12478909. The reversal of 12478900 is 987421.

It is an interprime number because it is at equal distance from previous prime (12478891) and next prime (12478909).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8214 + ... + 9613.

Almost surely, 2^12478900 is an apocalyptic number.

12478900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12478900 is an abundant number, since it is smaller than the sum of its proper divisors (18470508).

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

12478900 is a wasteful number, since it uses less digits than its factorization.

12478900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17848 (or 17841 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12478900 is about 3532.5486550082. The cubic root of 12478900 is about 231.9487847709.

The spelling of 12478900 in words is "twelve million, four hundred seventy-eight thousand, nine hundred".