16493456 has 20 divisors (see below), whose sum is σ = 36521472. Its totient is φ = 7068576.

The previous prime is 16493443. The next prime is 16493459. The reversal of 16493456 is 65439461.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16493459) 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, 73520 + ... + 73743.

Almost surely, 2^16493456 is an apocalyptic number.

16493456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16493456 is an abundant number, since it is smaller than the sum of its proper divisors (20028016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16493456 is a wasteful number, since it uses less digits than its factorization.

16493456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147278 (or 147272 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 16493456 is about 4061.2136117176. The cubic root of 16493456 is about 254.5485077556.

The spelling of 16493456 in words is "sixteen million, four hundred ninety-three thousand, four hundred fifty-six".