38978044 has 48 divisors (see below), whose sum is σ = 84107520. Its totient is φ = 15431040.

The previous prime is 38978033. The next prime is 38978089. The reversal of 38978044 is 44087983.

38978044 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 15 ways as a sum of consecutive naturals, for example, 20919 + ... + 22705.

It is an arithmetic number, because the mean of its divisors is an integer number (1752240).

Almost surely, 2^38978044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38978044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42053760).

38978044 is an abundant number, since it is smaller than the sum of its proper divisors (45129476).

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

38978044 is a wasteful number, since it uses less digits than its factorization.

38978044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 38978044 is about 6243.2398640449. The cubic root of 38978044 is about 339.0574935191.

The spelling of 38978044 in words is "thirty-eight million, nine hundred seventy-eight thousand, forty-four".