13040242 has 8 divisors (see below), whose sum is σ = 19647216. Its totient is φ = 6491172.

The previous prime is 13040231. The next prime is 13040257. The reversal of 13040242 is 24204031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13040242² = 340095822837128, which contains 22 as substring.

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, 13908 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (2455902).

Almost surely, 2^13040242 is an apocalyptic number.

13040242 is a deficient number, since it is larger than the sum of its proper divisors (6606974).

13040242 is a wasteful number, since it uses less digits than its factorization.

13040242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28952.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 13040242 is about 3611.1275247490. The cubic root of 13040242 is about 235.3758404190.

Adding to 13040242 its reverse (24204031), we get a palindrome (37244273).

The spelling of 13040242 in words is "thirteen million, forty thousand, two hundred forty-two".