38949856 has 96 divisors (see below), whose sum is σ = 92752128. Its totient is φ = 15882240.

The previous prime is 38949851. The next prime is 38949881. The reversal of 38949856 is 65894983.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38949851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137491 + ... + 137773.

It is an arithmetic number, because the mean of its divisors is an integer number (966168).

Almost surely, 2^38949856 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 38949856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46376064).

38949856 is an abundant number, since it is smaller than the sum of its proper divisors (53802272).

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

38949856 is a wasteful number, since it uses less digits than its factorization.

38949856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 336 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The square root of 38949856 is about 6240.9819740166. The cubic root of 38949856 is about 338.9757410207.

The spelling of 38949856 in words is "thirty-eight million, nine hundred forty-nine thousand, eight hundred fifty-six".