38149385 has 16 divisors (see below), whose sum is σ = 47139840. Its totient is φ = 29621760.

The previous prime is 38149381. The next prime is 38149399. The reversal of 38149385 is 58394183.

It is not a de Polignac number, because 38149385 - 2² = 38149381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38149381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40601 + ... + 41529.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240).

Almost surely, 2^38149385 is an apocalyptic number.

It is an amenable number.

38149385 is a deficient number, since it is larger than the sum of its proper divisors (8990455).

38149385 is a wasteful number, since it uses less digits than its factorization.

38149385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its digits is 103680, while the sum is 41.

The square root of 38149385 is about 6176.5188415482. The cubic root of 38149385 is about 336.6375161289.

The spelling of 38149385 in words is "thirty-eight million, one hundred forty-nine thousand, three hundred eighty-five".