38789220 has 48 divisors (see below), whose sum is σ = 109932480. Its totient is φ = 10217856.

The previous prime is 38789213. The next prime is 38789227. The reversal of 38789220 is 2298783.

It is an interprime number because it is at equal distance from previous prime (38789213) and next prime (38789227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38789227) 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, 1086 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (2290260).

Almost surely, 2^38789220 is an apocalyptic number.

38789220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38789220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54966240).

38789220 is an abundant number, since it is smaller than the sum of its proper divisors (71143260).

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

38789220 is a wasteful number, since it uses less digits than its factorization.

38789220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884 (or 7882 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 38789220 is about 6228.0992284966. The cubic root of 38789220 is about 338.5091005686.

The spelling of 38789220 in words is "thirty-eight million, seven hundred eighty-nine thousand, two hundred twenty".