38992285 has 4 divisors (see below), whose sum is σ = 46790748. Its totient is φ = 31193824.

The previous prime is 38992253. The next prime is 38992319. The reversal of 38992285 is 58229983.

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 11471769 + 27520516 = 3387^2 + 5246^2 .

It is a cyclic number.

It is not a de Polignac number, because 38992285 - 2⁵ = 38992253 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3899224 + ... + 3899233.

It is an arithmetic number, because the mean of its divisors is an integer number (11697687).

Almost surely, 2^38992285 is an apocalyptic number.

It is an amenable number.

38992285 is a deficient number, since it is larger than the sum of its proper divisors (7798463).

38992285 is an equidigital number, since it uses as much as digits as its factorization.

38992285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7798462.

The product of its digits is 311040, while the sum is 46.

The square root of 38992285 is about 6244.3802734939. The cubic root of 38992285 is about 339.0987811205.

The spelling of 38992285 in words is "thirty-eight million, nine hundred ninety-two thousand, two hundred eighty-five".