12006426 has 16 divisors (see below), whose sum is σ = 24662304. Its totient is φ = 3893904.

The previous prime is 12006409. The next prime is 12006427. The reversal of 12006426 is 62460021.

It is a happy number.

12006426 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12006427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26820 + ... + 27263.

It is an arithmetic number, because the mean of its divisors is an integer number (1541394).

Almost surely, 2^12006426 is an apocalyptic number.

12006426 is an abundant number, since it is smaller than the sum of its proper divisors (12655878).

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

12006426 is a wasteful number, since it uses less digits than its factorization.

12006426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54125.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12006426 is about 3465.0290042076. The cubic root of 12006426 is about 228.9837075167.

Adding to 12006426 its reverse (62460021), we get a palindrome (74466447).

It can be divided in two parts, 1200 and 6426, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 12006426 in words is "twelve million, six thousand, four hundred twenty-six".