18514424 has 32 divisors (see below), whose sum is σ = 35925120. Its totient is φ = 8939616.

The previous prime is 18514423. The next prime is 18514427. The reversal of 18514424 is 42441581.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36557 + ... + 37059.

It is an arithmetic number, because the mean of its divisors is an integer number (1122660).

Almost surely, 2^18514424 is an apocalyptic number.

It is an amenable number.

18514424 is a deficient number, since it is larger than the sum of its proper divisors (17410696).

18514424 is a wasteful number, since it uses less digits than its factorization.

18514424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 655 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 18514424 is about 4302.8390627584. The cubic root of 18514424 is about 264.5473416284.

The spelling of 18514424 in words is "eighteen million, five hundred fourteen thousand, four hundred twenty-four".