38286945 has 16 divisors (see below), whose sum is σ = 68065920. Its totient is φ = 20419632.

The previous prime is 38286917. The next prime is 38287001. The reversal of 38286945 is 54968283.

It is not a de Polignac number, because 38286945 - 2²⁵ = 4732513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38286945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141669 + ... + 141938.

It is an arithmetic number, because the mean of its divisors is an integer number (4254120).

Almost surely, 2^38286945 is an apocalyptic number.

It is an amenable number.

38286945 is a deficient number, since it is larger than the sum of its proper divisors (29778975).

38286945 is a wasteful number, since it uses less digits than its factorization.

38286945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283621 (or 283615 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 38286945 is about 6187.6445437662. The cubic root of 38286945 is about 337.0416494119.

The spelling of 38286945 in words is "thirty-eight million, two hundred eighty-six thousand, nine hundred forty-five".