12804742 has 8 divisors (see below), whose sum is σ = 19438776. Its totient is φ = 6325152.

The previous prime is 12804739. The next prime is 12804749. The reversal of 12804742 is 24740821.

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

It is a super-2 number, since 2×12804742² = 327922835373128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12804742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804749) 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, 38403 + ... + 38734.

It is an arithmetic number, because the mean of its divisors is an integer number (2429847).

Almost surely, 2^12804742 is an apocalyptic number.

12804742 is a deficient number, since it is larger than the sum of its proper divisors (6634034).

12804742 is an equidigital number, since it uses as much as digits as its factorization.

12804742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77222.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12804742 is about 3578.3714172791. The cubic root of 12804742 is about 233.9503023491.

The spelling of 12804742 in words is "twelve million, eight hundred four thousand, seven hundred forty-two".