38865834 has 48 divisors (see below), whose sum is σ = 96849792. Its totient is φ = 11034144.

The previous prime is 38865833. The next prime is 38865839. The reversal of 38865834 is 43856883.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 38865834.

It is not an unprimeable number, because it can be changed into a prime (38865833) 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 23 ways as a sum of consecutive naturals, for example, 20907 + ... + 22689.

It is an arithmetic number, because the mean of its divisors is an integer number (2017704).

Almost surely, 2^38865834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38865834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48424896).

38865834 is an abundant number, since it is smaller than the sum of its proper divisors (57983958).

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

38865834 is a wasteful number, since it uses less digits than its factorization.

38865834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1968 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 38865834 is about 6234.2468671043. The cubic root of 38865834 is about 338.7318212128.

The spelling of 38865834 in words is "thirty-eight million, eight hundred sixty-five thousand, eight hundred thirty-four".