13603020 has 48 divisors (see below), whose sum is σ = 38320128. Its totient is φ = 3605440.

The previous prime is 13603019. The next prime is 13603049. The reversal of 13603020 is 2030631.

13603020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10867 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^13603020 is an apocalyptic number.

13603020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13603020 is an abundant number, since it is smaller than the sum of its proper divisors (24717108).

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

13603020 is a wasteful number, since it uses less digits than its factorization.

13603020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13603020 is about 3688.2272164280. The cubic root of 13603020 is about 238.7143053094.

Adding to 13603020 its reverse (2030631), we get a palindrome (15633651).

The spelling of 13603020 in words is "thirteen million, six hundred three thousand, twenty".