38440664 has 16 divisors (see below), whose sum is σ = 72171600. Its totient is φ = 19194912.

The previous prime is 38440663. The next prime is 38440687. The reversal of 38440664 is 46604483.

It is a happy number.

38440664 is nontrivially palindromic in base 3.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440663) 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, 4277 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (4510725).

Almost surely, 2^38440664 is an apocalyptic number.

It is an amenable number.

38440664 is a deficient number, since it is larger than the sum of its proper divisors (33730936).

38440664 is a wasteful number, since it uses less digits than its factorization.

38440664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 38440664 is about 6200.0535481559. The cubic root of 38440664 is about 337.4921121156.

The spelling of 38440664 in words is "thirty-eight million, four hundred forty thousand, six hundred sixty-four".