38842129 has 4 divisors (see below), whose sum is σ = 39789540. Its totient is φ = 37894720.

The previous prime is 38842121. The next prime is 38842157. The reversal of 38842129 is 92124883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16184529 + 22657600 = 4023^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 38842129 - 2³ = 38842121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38842121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473644 + ... + 473725.

It is an arithmetic number, because the mean of its divisors is an integer number (9947385).

Almost surely, 2^38842129 is an apocalyptic number.

It is an amenable number.

38842129 is a deficient number, since it is larger than the sum of its proper divisors (947411).

38842129 is an equidigital number, since it uses as much as digits as its factorization.

38842129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947410.

The product of its digits is 27648, while the sum is 37.

The square root of 38842129 is about 6232.3453851660. The cubic root of 38842129 is about 338.6629409134.

The spelling of 38842129 in words is "thirty-eight million, eight hundred forty-two thousand, one hundred twenty-nine".