38044145 has 4 divisors (see below), whose sum is σ = 45652980. Its totient is φ = 30435312.

The previous prime is 38044133. The next prime is 38044157. The reversal of 38044145 is 54144083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54144083 = 7 ⋅7734869.

It is an interprime number because it is at equal distance from previous prime (38044133) and next prime (38044157).

It can be written as a sum of positive squares in 2 ways, for example, as 23512801 + 14531344 = 4849^2 + 3812^2 .

It is a cyclic number.

It is not a de Polignac number, because 38044145 - 2⁶ = 38044081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3804410 + ... + 3804419.

It is an arithmetic number, because the mean of its divisors is an integer number (11413245).

Almost surely, 2^38044145 is an apocalyptic number.

It is an amenable number.

38044145 is a deficient number, since it is larger than the sum of its proper divisors (7608835).

38044145 is an equidigital number, since it uses as much as digits as its factorization.

38044145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608834.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 38044145 is about 6167.9935959759. The cubic root of 38044145 is about 336.3276783728.

The spelling of 38044145 in words is "thirty-eight million, forty-four thousand, one hundred forty-five".