18794742 has 32 divisors (see below), whose sum is σ = 39865344. Its totient is φ = 5896800.

The previous prime is 18794723. The next prime is 18794747. The reversal of 18794742 is 24749781.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18794694 and 18794703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18794747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5517 + ... + 8247.

It is an arithmetic number, because the mean of its divisors is an integer number (1245792).

Almost surely, 2^18794742 is an apocalyptic number.

18794742 is an abundant number, since it is smaller than the sum of its proper divisors (21070602).

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

18794742 is a wasteful number, since it uses less digits than its factorization.

18794742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804.

The product of its digits is 112896, while the sum is 42.

The square root of 18794742 is about 4335.2903016984. The cubic root of 18794742 is about 265.8757876355.

The spelling of 18794742 in words is "eighteen million, seven hundred ninety-four thousand, seven hundred forty-two".