12405414 has 32 divisors (see below), whose sum is σ = 29018880. Its totient is φ = 3461472.

The previous prime is 12405403. The next prime is 12405431. The reversal of 12405414 is 41450421.

It is a happy number.

It is a super-2 number, since 2×12405414² = 307788593022792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1629 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (906840).

Almost surely, 2^12405414 is an apocalyptic number.

12405414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12405414 is an abundant number, since it is smaller than the sum of its proper divisors (16613466).

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

12405414 is a wasteful number, since it uses less digits than its factorization.

12405414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 12405414 is about 3522.1320247827. The cubic root of 12405414 is about 231.4925865328.

Adding to 12405414 its reverse (41450421), we get a palindrome (53855835).

The spelling of 12405414 in words is "twelve million, four hundred five thousand, four hundred fourteen".