38644404 has 24 divisors (see below), whose sum is σ = 94916640. Its totient is φ = 12203424.

The previous prime is 38644399. The next prime is 38644429. The reversal of 38644404 is 40444683.

38644404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84519 + ... + 84974.

It is an arithmetic number, because the mean of its divisors is an integer number (3954860).

Almost surely, 2^38644404 is an apocalyptic number.

It is an amenable number.

38644404 is an abundant number, since it is smaller than the sum of its proper divisors (56272236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38644404 is a wasteful number, since it uses less digits than its factorization.

38644404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169519 (or 169517 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 38644404 is about 6216.4623380183. The cubic root of 38644404 is about 338.0873109876.

The spelling of 38644404 in words is "thirty-eight million, six hundred forty-four thousand, four hundred four".