12465420 has 144 divisors (see below), whose sum is σ = 41023584. Its totient is φ = 2816000.

The previous prime is 12465419. The next prime is 12465421. The reversal of 12465420 is 2456421.

12465420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12465419) and next prime (12465421).

It is not an unprimeable number, because it can be changed into a prime (12465421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123370 + ... + 123470.

It is an arithmetic number, because the mean of its divisors is an integer number (284886).

Almost surely, 2^12465420 is an apocalyptic number.

12465420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12465420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20511792).

12465420 is an abundant number, since it is smaller than the sum of its proper divisors (28558164).

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

12465420 is a wasteful number, since it uses less digits than its factorization.

12465420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 12465420 is about 3530.6401685813. The cubic root of 12465420 is about 231.8652358435.

It can be divided in two parts, 1246 and 5420, that added together give a palindrome (6666).

The spelling of 12465420 in words is "twelve million, four hundred sixty-five thousand, four hundred twenty".