13504442 has 16 divisors (see below), whose sum is σ = 23206272. Its totient is φ = 5773680.

The previous prime is 13504429. The next prime is 13504471. The reversal of 13504442 is 24440531.

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, 6683 + ... + 8465.

It is an arithmetic number, because the mean of its divisors is an integer number (1450392).

Almost surely, 2^13504442 is an apocalyptic number.

13504442 is a deficient number, since it is larger than the sum of its proper divisors (9701830).

13504442 is a wasteful number, since it uses less digits than its factorization.

13504442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 13504442 is about 3674.8390440943. The cubic root of 13504442 is about 238.1362706183.

Adding to 13504442 its reverse (24440531), we get a palindrome (37944973).

The spelling of 13504442 in words is "thirteen million, five hundred four thousand, four hundred forty-two".