13403242 has 12 divisors (see below), whose sum is σ = 21357990. Its totient is φ = 6307136.

The previous prime is 13403239. The next prime is 13403251. The reversal of 13403242 is 24230431.

It can be written as a sum of positive squares in 3 ways, for example, as 13329801 + 73441 = 3651^2 + 271^2 .

It is a super-2 number, since 2×13403242² = 359293792221128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11017 + ... + 12172.

Almost surely, 2^13403242 is an apocalyptic number.

13403242 is a deficient number, since it is larger than the sum of its proper divisors (7954748).

13403242 is a wasteful number, since it uses less digits than its factorization.

13403242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23225 (or 23208 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13403242 is about 3661.0438402183. The cubic root of 13403242 is about 237.5399275439.

Adding to 13403242 its reverse (24230431), we get a palindrome (37633673).

The spelling of 13403242 in words is "thirteen million, four hundred three thousand, two hundred forty-two".