38644101 has 8 divisors (see below), whose sum is σ = 57250560. Its totient is φ = 25762716.

The previous prime is 38644087. The next prime is 38644141. The reversal of 38644101 is 10144683.

38644101 is a `hidden beast` number, since 3 + 8 + 644 + 10 + 1 = 666.

It is not a de Polignac number, because 38644101 - 2⁷ = 38643973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1431263 = 38644101 / (3 + 8 + 6 + 4 + 4 + 1 + 0 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38644141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715605 + ... + 715658.

It is an arithmetic number, because the mean of its divisors is an integer number (7156320).

Almost surely, 2^38644101 is an apocalyptic number.

It is an amenable number.

38644101 is a deficient number, since it is larger than the sum of its proper divisors (18606459).

38644101 is a wasteful number, since it uses less digits than its factorization.

38644101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431272 (or 1431266 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 38644101 is about 6216.4379671963. The cubic root of 38644101 is about 338.0864273692.

Adding to 38644101 its reverse (10144683), we get a palindrome (48788784).

The spelling of 38644101 in words is "thirty-eight million, six hundred forty-four thousand, one hundred one".