18935948 has 6 divisors (see below), whose sum is σ = 33137916. Its totient is φ = 9467972.

The previous prime is 18935941. The next prime is 18935993. The reversal of 18935948 is 84953981.

It is not an unprimeable number, because it can be changed into a prime (18935941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2366990 + ... + 2366997.

It is an arithmetic number, because the mean of its divisors is an integer number (5522986).

Almost surely, 2^18935948 is an apocalyptic number.

It is an amenable number.

18935948 is a deficient number, since it is larger than the sum of its proper divisors (14201968).

18935948 is a wasteful number, since it uses less digits than its factorization.

18935948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733991 (or 4733989 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 18935948 is about 4351.5454725879. The cubic root of 18935948 is about 266.5399738458.

The spelling of 18935948 in words is "eighteen million, nine hundred thirty-five thousand, nine hundred forty-eight".