18973514 has 16 divisors (see below), whose sum is σ = 34238400. Its totient is φ = 7703424.

The previous prime is 18973499. The next prime is 18973517. The reversal of 18973514 is 41537981.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18973517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35399 + ... + 35930.

It is an arithmetic number, because the mean of its divisors is an integer number (2139900).

Almost surely, 2^18973514 is an apocalyptic number.

18973514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18973514 is a deficient number, since it is larger than the sum of its proper divisors (15264886).

18973514 is a wasteful number, since it uses less digits than its factorization.

18973514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71357.

The product of its digits is 30240, while the sum is 38.

The square root of 18973514 is about 4355.8597314422. The cubic root of 18973514 is about 266.7161154828.

The spelling of 18973514 in words is "eighteen million, nine hundred seventy-three thousand, five hundred fourteen".