38666349 has 24 divisors (see below), whose sum is σ = 60472320. Its totient is φ = 24414696.

The previous prime is 38666267. The next prime is 38666359. The reversal of 38666349 is 94366683.

It is not a de Polignac number, because 38666349 - 2⁸ = 38666093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38666359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7764 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (2519680).

Almost surely, 2^38666349 is an apocalyptic number.

It is an amenable number.

38666349 is a deficient number, since it is larger than the sum of its proper divisors (21805971).

38666349 is a wasteful number, since it uses less digits than its factorization.

38666349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 3989 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 38666349 is about 6218.2271589256. The cubic root of 38666349 is about 338.1512954313.

The spelling of 38666349 in words is "thirty-eight million, six hundred sixty-six thousand, three hundred forty-nine".