12040642 has 8 divisors (see below), whose sum is σ = 19011600. Its totient is φ = 5703444.

The previous prime is 12040631. The next prime is 12040649. The reversal of 12040642 is 24604021.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12040649) 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, 158392 + ... + 158467.

It is an arithmetic number, because the mean of its divisors is an integer number (2376450).

Almost surely, 2^12040642 is an apocalyptic number.

12040642 is a deficient number, since it is larger than the sum of its proper divisors (6970958).

12040642 is a wasteful number, since it uses less digits than its factorization.

12040642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316880.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12040642 is about 3469.9628240083. The cubic root of 12040642 is about 229.2010210242.

Adding to 12040642 its reverse (24604021), we get a palindrome (36644663).

The spelling of 12040642 in words is "twelve million, forty thousand, six hundred forty-two".