13442556 has 24 divisors (see below), whose sum is σ = 31497984. Its totient is φ = 4462000.

The previous prime is 13442537. The next prime is 13442591. The reversal of 13442556 is 65524431.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 781 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^13442556 is an apocalyptic number.

It is an amenable number.

13442556 is an abundant number, since it is smaller than the sum of its proper divisors (18055428).

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

13442556 is a wasteful number, since it uses less digits than its factorization.

13442556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721 (or 4719 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 13442556 is about 3666.4091424717. The cubic root of 13442556 is about 237.7719492430.

Adding to 13442556 its reverse (65524431), we get a palindrome (78966987).

The spelling of 13442556 in words is "thirteen million, four hundred forty-two thousand, five hundred fifty-six".