18743948 has 6 divisors (see below), whose sum is σ = 32801916. Its totient is φ = 9371972.

The previous prime is 18743909. The next prime is 18743951. The reversal of 18743948 is 84934781.

It is a junction number, because it is equal to n+sod(n) for n = 18743899 and 18743908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2342990 + ... + 2342997.

It is an arithmetic number, because the mean of its divisors is an integer number (5466986).

Almost surely, 2^18743948 is an apocalyptic number.

It is an amenable number.

18743948 is a deficient number, since it is larger than the sum of its proper divisors (14057968).

18743948 is a wasteful number, since it uses less digits than its factorization.

18743948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685991 (or 4685989 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 18743948 is about 4329.4281377568. The cubic root of 18743948 is about 265.6360560658.

It can be divided in two parts, 18743 and 948, that added together give a palindrome (19691).

The spelling of 18743948 in words is "eighteen million, seven hundred forty-three thousand, nine hundred forty-eight".