18971468 has 12 divisors (see below), whose sum is σ = 33245520. Its totient is φ = 9472752.

The previous prime is 18971461. The next prime is 18971497. The reversal of 18971468 is 86417981.

It is not an unprimeable number, because it can be changed into a prime (18971461) 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, 530 + ... + 6182.

It is an arithmetic number, because the mean of its divisors is an integer number (2770460).

Almost surely, 2^18971468 is an apocalyptic number.

It is an amenable number.

18971468 is a deficient number, since it is larger than the sum of its proper divisors (14274052).

18971468 is a wasteful number, since it uses less digits than its factorization.

18971468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496 (or 6494 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 18971468 is about 4355.6248690630. The cubic root of 18971468 is about 266.7065280690.

The spelling of 18971468 in words is "eighteen million, nine hundred seventy-one thousand, four hundred sixty-eight".