38501636 has 6 divisors (see below), whose sum is σ = 67377870. Its totient is φ = 19250816.

The previous prime is 38501633. The next prime is 38501653. The reversal of 38501636 is 63610583.

It can be written as a sum of positive squares in only one way, i.e., 26460736 + 12040900 = 5144^2 + 3470^2 .

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

It is not an unprimeable number, because it can be changed into a prime (38501633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4812701 + ... + 4812708.

It is an arithmetic number, because the mean of its divisors is an integer number (11229645).

Almost surely, 2^38501636 is an apocalyptic number.

It is an amenable number.

38501636 is a deficient number, since it is larger than the sum of its proper divisors (28876234).

38501636 is a wasteful number, since it uses less digits than its factorization.

38501636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625413 (or 9625411 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 38501636 is about 6204.9686542319. The cubic root of 38501636 is about 337.6704536331.

The spelling of 38501636 in words is "thirty-eight million, five hundred one thousand, six hundred thirty-six".