3788220 has 48 divisors (see below), whose sum is σ = 11168640. Its totient is φ = 956736.

The previous prime is 3788219. The next prime is 3788221. The reversal of 3788220 is 228873.

3788220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3788219) and next prime (3788221).

It is a super-2 number, since 2×3788220² = 28701221536800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788221) 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, 522 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (232680).

Almost surely, 2^3788220 is an apocalyptic number.

3788220 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 3788220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5584320).

3788220 is an abundant number, since it is smaller than the sum of its proper divisors (7380420).

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

3788220 is a wasteful number, since it uses less digits than its factorization.

3788220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 3788220 is about 1946.3350174109. The cubic root of 3788220 is about 155.8876574466.

The spelling of 3788220 in words is "three million, seven hundred eighty-eight thousand, two hundred twenty".