12401420 has 48 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 4764864.

The previous prime is 12401399. The next prime is 12401429. The reversal of 12401420 is 2410421.

It is a junction number, because it is equal to n+sod(n) for n = 12401395 and 12401404.

It is not an unprimeable number, because it can be changed into a prime (12401429) by changing a digit.

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, 74177 + ... + 74343.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^12401420 is an apocalyptic number.

12401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12401420 is an abundant number, since it is smaller than the sum of its proper divisors (14693620).

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

12401420 is a wasteful number, since it uses less digits than its factorization.

12401420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

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

The square root of 12401420 is about 3521.5649930109. The cubic root of 12401420 is about 231.4677403746.

Adding to 12401420 its reverse (2410421), we get a palindrome (14811841).

Subtracting from 12401420 its reverse (2410421), we obtain a palindrome (9990999).

It can be divided in two parts, 12401 and 420, that added together give a palindrome (12821).

The spelling of 12401420 in words is "twelve million, four hundred one thousand, four hundred twenty".