13403420 has 24 divisors (see below), whose sum is σ = 28322784. Its totient is φ = 5327936.

The previous prime is 13403399. The next prime is 13403431. The reversal of 13403420 is 2430431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (1180116).

Almost surely, 2^13403420 is an apocalyptic number.

13403420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13403420 is an abundant number, since it is smaller than the sum of its proper divisors (14919364).

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

13403420 is a wasteful number, since it uses less digits than its factorization.

13403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13403420 is about 3661.0681501442. The cubic root of 13403420 is about 237.5409790785.

Adding to 13403420 its reverse (2430431), we get a palindrome (15833851).

The spelling of 13403420 in words is "thirteen million, four hundred three thousand, four hundred twenty".