18946246 has 16 divisors (see below), whose sum is σ = 31124880. Its totient is φ = 8578080.

The previous prime is 18946237. The next prime is 18946261. The reversal of 18946246 is 64264981.

It is a junction number, because it is equal to n+sod(n) for n = 18946199 and 18946208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4540 + ... + 7648.

It is an arithmetic number, because the mean of its divisors is an integer number (1945305).

Almost surely, 2^18946246 is an apocalyptic number.

18946246 is a deficient number, since it is larger than the sum of its proper divisors (12178634).

18946246 is a wasteful number, since it uses less digits than its factorization.

18946246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its digits is 82944, while the sum is 40.

The square root of 18946246 is about 4352.7285695297. The cubic root of 18946246 is about 266.5882828650.

The spelling of 18946246 in words is "eighteen million, nine hundred forty-six thousand, two hundred forty-six".