38489413 has 4 divisors (see below), whose sum is σ = 38626668. Its totient is φ = 38352160.

The previous prime is 38489401. The next prime is 38489431. The reversal of 38489413 is 31498483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31498483 = 53 ⋅594311.

It can be written as a sum of positive squares in 2 ways, for example, as 29235649 + 9253764 = 5407^2 + 3042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38489413 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38489443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68206 + ... + 68767.

It is an arithmetic number, because the mean of its divisors is an integer number (9656667).

Almost surely, 2^38489413 is an apocalyptic number.

It is an amenable number.

38489413 is a deficient number, since it is larger than the sum of its proper divisors (137255).

38489413 is a wasteful number, since it uses less digits than its factorization.

38489413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137254.

The product of its digits is 82944, while the sum is 40.

The square root of 38489413 is about 6203.9836395658. The cubic root of 38489413 is about 337.6347167725.

The spelling of 38489413 in words is "thirty-eight million, four hundred eighty-nine thousand, four hundred thirteen".