38853649 has 4 divisors (see below), whose sum is σ = 40193460. Its totient is φ = 37513840.

The previous prime is 38853643. The next prime is 38853667. The reversal of 38853649 is 94635883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9042049 + 29811600 = 3007^2 + 5460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38853649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38853599 and 38853608.

It is not an unprimeable number, because it can be changed into a prime (38853643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669862 + ... + 669919.

It is an arithmetic number, because the mean of its divisors is an integer number (10048365).

Almost surely, 2^38853649 is an apocalyptic number.

It is an amenable number.

38853649 is a deficient number, since it is larger than the sum of its proper divisors (1339811).

38853649 is a wasteful number, since it uses less digits than its factorization.

38853649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339810.

The product of its digits is 622080, while the sum is 46.

The square root of 38853649 is about 6233.2695273027. The cubic root of 38853649 is about 338.6964184076.

The spelling of 38853649 in words is "thirty-eight million, eight hundred fifty-three thousand, six hundred forty-nine".