38644925 has 12 divisors (see below), whose sum is σ = 52276416. Its totient is φ = 28105200.

The previous prime is 38644891. The next prime is 38644933. The reversal of 38644925 is 52944683.

It is not a de Polignac number, because 38644925 - 2¹⁰ = 38643901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69989 + ... + 70538.

It is an arithmetic number, because the mean of its divisors is an integer number (4356368).

Almost surely, 2^38644925 is an apocalyptic number.

It is an amenable number.

38644925 is a deficient number, since it is larger than the sum of its proper divisors (13631491).

38644925 is a wasteful number, since it uses less digits than its factorization.

38644925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140548 (or 140543 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 38644925 is about 6216.5042427396. The cubic root of 38644925 is about 338.0888303339.

The spelling of 38644925 in words is "thirty-eight million, six hundred forty-four thousand, nine hundred twenty-five".