3996220 has 12 divisors (see below), whose sum is σ = 8392104. Its totient is φ = 1598480.

The previous prime is 3996211. The next prime is 3996221. The reversal of 3996220 is 226993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99886 + ... + 99925.

It is an arithmetic number, because the mean of its divisors is an integer number (699342).

Almost surely, 2^3996220 is an apocalyptic number.

It is an amenable number.

3996220 is an abundant number, since it is smaller than the sum of its proper divisors (4395884).

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

3996220 is a wasteful number, since it uses less digits than its factorization.

3996220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199820 (or 199818 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 3996220 is about 1999.0547766382. The cubic root of 3996220 is about 158.6900863044.

The spelling of 3996220 in words is "three million, nine hundred ninety-six thousand, two hundred twenty".