13403328 has 28 divisors (see below), whose sum is σ = 35463480. Its totient is φ = 4467712.

The previous prime is 13403323. The next prime is 13403333. The reversal of 13403328 is 82330431.

It is an interprime number because it is at equal distance from previous prime (13403323) and next prime (13403333).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 13403298 and 13403307.

It is not an unprimeable number, because it can be changed into a prime (13403323) 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, 34713 + ... + 35096.

Almost surely, 2^13403328 is an apocalyptic number.

It is an amenable number.

13403328 is an abundant number, since it is smaller than the sum of its proper divisors (22060152).

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

13403328 is an equidigital number, since it uses as much as digits as its factorization.

13403328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69824 (or 69814 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 13403328 is about 3661.0555854835. The cubic root of 13403328 is about 237.5404355899.

Adding to 13403328 its reverse (82330431), we get a palindrome (95733759).

It can be divided in two parts, 13403 and 328, that added together give a palindrome (13731).

The spelling of 13403328 in words is "thirteen million, four hundred three thousand, three hundred twenty-eight".