18813046 has 8 divisors (see below), whose sum is σ = 32250960. Its totient is φ = 8062728.

The previous prime is 18813043. The next prime is 18813077. The reversal of 18813046 is 64031881.

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

It is a junction number, because it is equal to n+sod(n) for n = 18812999 and 18813017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18813043) 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, 671881 + ... + 671908.

It is an arithmetic number, because the mean of its divisors is an integer number (4031370).

Almost surely, 2^18813046 is an apocalyptic number.

18813046 is a deficient number, since it is larger than the sum of its proper divisors (13437914).

18813046 is a wasteful number, since it uses less digits than its factorization.

18813046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343798.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 18813046 is about 4337.4008346013. The cubic root of 18813046 is about 265.9620708351.

The spelling of 18813046 in words is "eighteen million, eight hundred thirteen thousand, forty-six".