3827220 has 48 divisors (see below), whose sum is σ = 10801728. Its totient is φ = 1012480.

The previous prime is 3827209. The next prime is 3827221. The reversal of 3827220 is 227283.

It is a super-2 number, since 2×3827220² = 29295225856800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3827221) 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, 13480 + ... + 13760.

It is an arithmetic number, because the mean of its divisors is an integer number (225036).

Almost surely, 2^3827220 is an apocalyptic number.

3827220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3827220 is an abundant number, since it is smaller than the sum of its proper divisors (6974508).

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

3827220 is a wasteful number, since it uses less digits than its factorization.

3827220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3827220 is about 1956.3281933254. The cubic root of 3827220 is about 156.4207903149.

The spelling of 3827220 in words is "three million, eight hundred twenty-seven thousand, two hundred twenty".