38636636 has 6 divisors (see below), whose sum is σ = 67614120. Its totient is φ = 19318316.

The previous prime is 38636623. The next prime is 38636669. The reversal of 38636636 is 63663683.

It is a junction number, because it is equal to n+sod(n) for n = 38636593 and 38636602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4829576 + ... + 4829583.

It is an arithmetic number, because the mean of its divisors is an integer number (11269020).

Almost surely, 2^38636636 is an apocalyptic number.

It is an amenable number.

38636636 is a deficient number, since it is larger than the sum of its proper divisors (28977484).

38636636 is a wasteful number, since it uses less digits than its factorization.

38636636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9659163 (or 9659161 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

The square root of 38636636 is about 6215.8375139638. The cubic root of 38636636 is about 338.0646562351.

The spelling of 38636636 in words is "thirty-eight million, six hundred thirty-six thousand, six hundred thirty-six".