38189665 has 16 divisors (see below), whose sum is σ = 48127680. Its totient is φ = 29050560.

The previous prime is 38189659. The next prime is 38189687. The reversal of 38189665 is 56698183.

It is not a de Polignac number, because 38189665 - 2⁷ = 38189537 is a prime.

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, 7750 + ... + 11680.

It is an arithmetic number, because the mean of its divisors is an integer number (3007980).

Almost surely, 2^38189665 is an apocalyptic number.

It is an amenable number.

38189665 is a deficient number, since it is larger than the sum of its proper divisors (9938015).

38189665 is a wasteful number, since it uses less digits than its factorization.

38189665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032.

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

The square root of 38189665 is about 6179.7787177212. The cubic root of 38189665 is about 336.7559539455.

The spelling of 38189665 in words is "thirty-eight million, one hundred eighty-nine thousand, six hundred sixty-five".