13403718 has 80 divisors (see below), whose sum is σ = 33035904. Its totient is φ = 4043520.

The previous prime is 13403681. The next prime is 13403723. The reversal of 13403718 is 81730431.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13403691 and 13403700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85296 + ... + 85452.

Almost surely, 2^13403718 is an apocalyptic number.

13403718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13403718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16517952).

13403718 is an abundant number, since it is smaller than the sum of its proper divisors (19632186).

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

13403718 is a wasteful number, since it uses less digits than its factorization.

13403718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 13403718 is about 3661.1088484228. The cubic root of 13403718 is about 237.5427394921.

The spelling of 13403718 in words is "thirteen million, four hundred three thousand, seven hundred eighteen".