13390424 has 16 divisors (see below), whose sum is σ = 26584200. Its totient is φ = 6301312.

The previous prime is 13390417. The next prime is 13390469. The reversal of 13390424 is 42409331.

It is a junction number, because it is equal to n+sod(n) for n = 13390393 and 13390402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49094 + ... + 49365.

Almost surely, 2^13390424 is an apocalyptic number.

It is an amenable number.

13390424 is a deficient number, since it is larger than the sum of its proper divisors (13193776).

13390424 is a wasteful number, since it uses less digits than its factorization.

13390424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98482 (or 98478 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13390424 is about 3659.2928278562. The cubic root of 13390424 is about 237.4641807477.

Adding to 13390424 its reverse (42409331), we get a palindrome (55799755).

The spelling of 13390424 in words is "thirteen million, three hundred ninety thousand, four hundred twenty-four".