13433664 has 112 divisors (see below), whose sum is σ = 38299136. Its totient is φ = 4147200.

The previous prime is 13433663. The next prime is 13433671. The reversal of 13433664 is 46633431.

13433664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (15552) is a multiple of the sum of its prime factors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13433663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220194 + ... + 220254.

Almost surely, 2^13433664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13433664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19149568).

13433664 is an abundant number, since it is smaller than the sum of its proper divisors (24865472).

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

13433664 is a wasteful number, since it uses less digits than its factorization.

13433664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 134 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 13433664 is about 3665.1963112499. The cubic root of 13433664 is about 237.7195104427.

The spelling of 13433664 in words is "thirteen million, four hundred thirty-three thousand, six hundred sixty-four".