16518494 has 16 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 8093400.

The previous prime is 16518473. The next prime is 16518499. The reversal of 16518494 is 49481561.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16518499) 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, 24737 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^16518494 is an apocalyptic number.

16518494 is a deficient number, since it is larger than the sum of its proper divisors (8762146).

16518494 is a wasteful number, since it uses less digits than its factorization.

16518494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895.

The product of its digits is 34560, while the sum is 38.

The square root of 16518494 is about 4064.2950188194. The cubic root of 16518494 is about 254.6772489808.

The spelling of 16518494 in words is "sixteen million, five hundred eighteen thousand, four hundred ninety-four".