16494398 has 4 divisors (see below), whose sum is σ = 24741600. Its totient is φ = 8247198.

The previous prime is 16494397. The next prime is 16494407. The reversal of 16494398 is 89349461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89349461 = 179 ⋅499159.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16494391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4123598 + ... + 4123601.

It is an arithmetic number, because the mean of its divisors is an integer number (6185400).

Almost surely, 2^16494398 is an apocalyptic number.

16494398 is a deficient number, since it is larger than the sum of its proper divisors (8247202).

16494398 is an equidigital number, since it uses as much as digits as its factorization.

16494398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247201.

The product of its digits is 186624, while the sum is 44.

The square root of 16494398 is about 4061.3295852467. The cubic root of 16494398 is about 254.5533537205.

The spelling of 16494398 in words is "sixteen million, four hundred ninety-four thousand, three hundred ninety-eight".