38363636 has 12 divisors (see below), whose sum is σ = 69451620. Its totient is φ = 18520320.

The previous prime is 38363623. The next prime is 38363639. The reversal of 38363636 is 63636383.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 30184036 = 2860^2 + 5494^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 38363636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38363639) 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, 165245 + ... + 165476.

It is an arithmetic number, because the mean of its divisors is an integer number (5787635).

Almost surely, 2^38363636 is an apocalyptic number.

It is an amenable number.

38363636 is a deficient number, since it is larger than the sum of its proper divisors (31087984).

38363636 is a wasteful number, since it uses less digits than its factorization.

38363636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330754 (or 330752 counting only the distinct ones).

The product of its digits is 139968, while the sum is 38.

The square root of 38363636 is about 6193.8385513347. The cubic root of 38363636 is about 337.2665373985.

The spelling of 38363636 in words is "thirty-eight million, three hundred sixty-three thousand, six hundred thirty-six".