3888220 has 24 divisors (see below), whose sum is σ = 9332064. Its totient is φ = 1333056.

The previous prime is 3888193. The next prime is 3888253. The reversal of 3888220 is 228883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13747 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (388836).

Almost surely, 2^3888220 is an apocalyptic number.

It is an amenable number.

3888220 is an abundant number, since it is smaller than the sum of its proper divisors (5443844).

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

3888220 is a wasteful number, since it uses less digits than its factorization.

3888220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27789 (or 27787 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 3888220 is about 1971.8569927862. The cubic root of 3888220 is about 157.2474494562.

The spelling of 3888220 in words is "three million, eight hundred eighty-eight thousand, two hundred twenty".