13045438 has 16 divisors (see below), whose sum is σ = 23541120. Its totient is φ = 5296536.

The previous prime is 13045429. The next prime is 13045441. The reversal of 13045438 is 83454031.

It is a super-2 number, since 2×13045438² = 340366905223688, which contains 22 as substring.

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, 24256 + ... + 24787.

It is an arithmetic number, because the mean of its divisors is an integer number (1471320).

Almost surely, 2^13045438 is an apocalyptic number.

13045438 is a deficient number, since it is larger than the sum of its proper divisors (10495682).

13045438 is a wasteful number, since it uses less digits than its factorization.

13045438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49071.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 13045438 is about 3611.8468959800. The cubic root of 13045438 is about 235.4070987975.

Adding to 13045438 its reverse (83454031), we get a palindrome (96499469).

The spelling of 13045438 in words is "thirteen million, forty-five thousand, four hundred thirty-eight".