16433481 has 8 divisors (see below), whose sum is σ = 22057024. Its totient is φ = 10882800.

The previous prime is 16433471. The next prime is 16433489. The reversal of 16433481 is 18433461.

16433481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16433481 - 2²² = 12239177 is a prime.

It is a super-2 number, since 2×16433481² = 540118595554722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16433489) 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, 17686 + ... + 18591.

It is an arithmetic number, because the mean of its divisors is an integer number (2757128).

Almost surely, 2^16433481 is an apocalyptic number.

It is an amenable number.

16433481 is a deficient number, since it is larger than the sum of its proper divisors (5623543).

16433481 is a wasteful number, since it uses less digits than its factorization.

16433481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431.

The product of its digits is 6912, while the sum is 30.

The square root of 16433481 is about 4053.8230104434. The cubic root of 16433481 is about 254.2395955672.

The spelling of 16433481 in words is "sixteen million, four hundred thirty-three thousand, four hundred eighty-one".