12400014 has 32 divisors (see below), whose sum is σ = 27371520. Its totient is φ = 3713600.

The previous prime is 12400009. The next prime is 12400043. The reversal of 12400014 is 41000421.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^12400014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12400014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13685760).

12400014 is an abundant number, since it is smaller than the sum of its proper divisors (14971506).

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

12400014 is a wasteful number, since it uses less digits than its factorization.

12400014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216.

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

The square root of 12400014 is about 3521.3653601977. The cubic root of 12400014 is about 231.4589925607.

Adding to 12400014 its reverse (41000421), we get a palindrome (53400435).

The spelling of 12400014 in words is "twelve million, four hundred thousand, fourteen".