13087442 has 8 divisors (see below), whose sum is σ = 19652016. Its totient is φ = 6536772.

The previous prime is 13087441. The next prime is 13087457. The reversal of 13087442 is 24478031.

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

It is a super-2 number, since 2×13087442² = 342562276206728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13087441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (2456502).

Almost surely, 2^13087442 is an apocalyptic number.

13087442 is a deficient number, since it is larger than the sum of its proper divisors (6564574).

13087442 is a wasteful number, since it uses less digits than its factorization.

13087442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 13087442 is about 3617.6569765526. The cubic root of 13087442 is about 235.6594845011.

The spelling of 13087442 in words is "thirteen million, eighty-seven thousand, four hundred forty-two".