38149985 has 8 divisors (see below), whose sum is σ = 47770560. Its totient is φ = 29192944.

The previous prime is 38149963. The next prime is 38150011. The reversal of 38149985 is 58994183.

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

It is a cyclic number.

It is not a de Polignac number, because 38149985 - 2¹² = 38145889 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, 165755 + ... + 165984.

It is an arithmetic number, because the mean of its divisors is an integer number (5971320).

Almost surely, 2^38149985 is an apocalyptic number.

It is an amenable number.

38149985 is a deficient number, since it is larger than the sum of its proper divisors (9620575).

38149985 is a wasteful number, since it uses less digits than its factorization.

38149985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331767.

The product of its digits is 311040, while the sum is 47.

The square root of 38149985 is about 6176.5674124063. The cubic root of 38149985 is about 336.6392809582.

The spelling of 38149985 in words is "thirty-eight million, one hundred forty-nine thousand, nine hundred eighty-five".