38685020 has 48 divisors (see below), whose sum is σ = 89552736. Its totient is φ = 13920000.

The previous prime is 38685001. The next prime is 38685029. The reversal of 38685020 is 2058683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38685029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21350 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (1865682).

Almost surely, 2^38685020 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 38685020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44776368).

38685020 is an abundant number, since it is smaller than the sum of its proper divisors (50867716).

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

38685020 is a wasteful number, since it uses less digits than its factorization.

38685020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38685020 is about 6219.7282898853. The cubic root of 38685020 is about 338.2057149032.

It can be divided in two parts, 3868 and 5020, that added together give a palindrome (8888).

The spelling of 38685020 in words is "thirty-eight million, six hundred eighty-five thousand, twenty".