12693420 has 72 divisors (see below), whose sum is σ = 38953824. Its totient is φ = 3345408.

The previous prime is 12693413. The next prime is 12693449. The reversal of 12693420 is 2439621.

It is a super-2 number, since 2×12693420² = 322245822592800, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 17097 + ... + 17823.

It is a vampire number, since it can be written as 2910 ⋅ 4362 (with its own digits).

Almost surely, 2^12693420 is an apocalyptic number.

12693420 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 12693420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19476912).

12693420 is an abundant number, since it is smaller than the sum of its proper divisors (26260404).

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

12693420 is a wasteful number, since it uses less digits than its factorization.

12693420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 12693420 is about 3562.7826203685. The cubic root of 12693420 is about 233.2703548853.

The spelling of 12693420 in words is "twelve million, six hundred ninety-three thousand, four hundred twenty".