38418649 has 8 divisors (see below), whose sum is σ = 39816000. Its totient is φ = 37026192.

The previous prime is 38418613. The next prime is 38418697. The reversal of 38418649 is 94681483.

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 38418649 - 2⁹ = 38418137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38418449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23542 + ... + 25120.

It is an arithmetic number, because the mean of its divisors is an integer number (4977000).

Almost surely, 2^38418649 is an apocalyptic number.

It is an amenable number.

38418649 is a deficient number, since it is larger than the sum of its proper divisors (1397351).

38418649 is a wasteful number, since it uses less digits than its factorization.

38418649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447.

The product of its digits is 165888, while the sum is 43.

The square root of 38418649 is about 6198.2779059994. The cubic root of 38418649 is about 337.4276724754.

The spelling of 38418649 in words is "thirty-eight million, four hundred eighteen thousand, six hundred forty-nine".