12020642 has 8 divisors (see below), whose sum is σ = 18055632. Its totient is φ = 6002100.

The previous prime is 12020639. The next prime is 12020647. The reversal of 12020642 is 24602021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12020642.

It is not an unprimeable number, because it can be changed into a prime (12020647) 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, 2084 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (2256954).

Almost surely, 2^12020642 is an apocalyptic number.

12020642 is a deficient number, since it is larger than the sum of its proper divisors (6034990).

12020642 is an equidigital number, since it uses as much as digits as its factorization.

12020642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224.

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

The square root of 12020642 is about 3467.0797510297. The cubic root of 12020642 is about 229.0740465974.

Adding to 12020642 its reverse (24602021), we get a palindrome (36622663).

The spelling of 12020642 in words is "twelve million, twenty thousand, six hundred forty-two".