38858250 has 64 divisors (see below), whose sum is σ = 97853184. Its totient is φ = 10270400.

The previous prime is 38858233. The next prime is 38858257. The reversal of 38858250 is 5285883.

It is a junction number, because it is equal to n+sod(n) for n = 38858199 and 38858208.

It is not an unprimeable number, because it can be changed into a prime (38858257) 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 31 ways as a sum of consecutive naturals, for example, 147619 + ... + 147881.

It is an arithmetic number, because the mean of its divisors is an integer number (1528956).

Almost surely, 2^38858250 is an apocalyptic number.

38858250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38858250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48926592).

38858250 is an abundant number, since it is smaller than the sum of its proper divisors (58994934).

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

38858250 is a wasteful number, since it uses less digits than its factorization.

38858250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 38858250 is about 6233.6385843262. The cubic root of 38858250 is about 338.7097872138.

The spelling of 38858250 in words is "thirty-eight million, eight hundred fifty-eight thousand, two hundred fifty".