38257945 has 8 divisors (see below), whose sum is σ = 50083200. Its totient is φ = 27823920.

The previous prime is 38257909. The next prime is 38257951. The reversal of 38257945 is 54975283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38257945 - 2⁹ = 38257433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347745 + ... + 347854.

It is an arithmetic number, because the mean of its divisors is an integer number (6260400).

Almost surely, 2^38257945 is an apocalyptic number.

It is an amenable number.

38257945 is a deficient number, since it is larger than the sum of its proper divisors (11825255).

38257945 is a wasteful number, since it uses less digits than its factorization.

38257945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695615.

The product of its digits is 302400, while the sum is 43.

The square root of 38257945 is about 6185.3007202560. The cubic root of 38257945 is about 336.9565318289.

The spelling of 38257945 in words is "thirty-eight million, two hundred fifty-seven thousand, nine hundred forty-five".