38486644 has 24 divisors (see below), whose sum is σ = 78281280. Its totient is φ = 16214016.

The previous prime is 38486641. The next prime is 38486663. The reversal of 38486644 is 44668483.

It is a self number, because there is not a number n which added to its sum of digits gives 38486644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38486641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9997 + ... + 13300.

It is an arithmetic number, because the mean of its divisors is an integer number (3261720).

Almost surely, 2^38486644 is an apocalyptic number.

It is an amenable number.

38486644 is an abundant number, since it is smaller than the sum of its proper divisors (39794636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38486644 is a wasteful number, since it uses less digits than its factorization.

38486644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23367 (or 23365 counting only the distinct ones).

The product of its digits is 442368, while the sum is 43.

The square root of 38486644 is about 6203.7604724876. The cubic root of 38486644 is about 337.6266198883.

The spelling of 38486644 in words is "thirty-eight million, four hundred eighty-six thousand, six hundred forty-four".