12400124 has 24 divisors (see below), whose sum is σ = 24439296. Its totient is φ = 5454000.

The previous prime is 12400109. The next prime is 12400127. The reversal of 12400124 is 42100421.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 12400099 and 12400108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3182 + ... + 5909.

It is an arithmetic number, because the mean of its divisors is an integer number (1018304).

Almost surely, 2^12400124 is an apocalyptic number.

It is an amenable number.

12400124 is a deficient number, since it is larger than the sum of its proper divisors (12039172).

12400124 is a wasteful number, since it uses less digits than its factorization.

12400124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137 (or 9135 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12400124 is about 3521.3809791046. The cubic root of 12400124 is about 231.4596769797.

Adding to 12400124 its reverse (42100421), we get a palindrome (54500545).

It can be divided in two parts, 12400 and 124, that multiplied together give a square (1537600 = 1240²).

The spelling of 12400124 in words is "twelve million, four hundred thousand, one hundred twenty-four".