18775948 has 6 divisors (see below), whose sum is σ = 32857916. Its totient is φ = 9387972.

The previous prime is 18775943. The next prime is 18775951. The reversal of 18775948 is 84957781.

It is not an unprimeable number, because it can be changed into a prime (18775943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2346990 + ... + 2346997.

Almost surely, 2^18775948 is an apocalyptic number.

It is an amenable number.

18775948 is a deficient number, since it is larger than the sum of its proper divisors (14081968).

18775948 is a wasteful number, since it uses less digits than its factorization.

18775948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693991 (or 4693989 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

The square root of 18775948 is about 4333.1221999847. The cubic root of 18775948 is about 265.7871363159.

The spelling of 18775948 in words is "eighteen million, seven hundred seventy-five thousand, nine hundred forty-eight".