12420026 has 8 divisors (see below), whose sum is σ = 19231104. Its totient is φ = 6009660.

The previous prime is 12420019. The next prime is 12420029. The reversal of 12420026 is 62002421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12420026³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12419986 and 12420013.

It is not an unprimeable number, because it can be changed into a prime (12420029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100100 + ... + 100223.

It is an arithmetic number, because the mean of its divisors is an integer number (2403888).

Almost surely, 2^12420026 is an apocalyptic number.

12420026 is a deficient number, since it is larger than the sum of its proper divisors (6811078).

12420026 is a wasteful number, since it uses less digits than its factorization.

12420026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200356.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12420026 is about 3524.2057261176. The cubic root of 12420026 is about 231.5834404794.

Adding to 12420026 its reverse (62002421), we get a palindrome (74422447).

The spelling of 12420026 in words is "twelve million, four hundred twenty thousand, twenty-six".