3221890 has 16 divisors (see below), whose sum is σ = 6628032. Its totient is φ = 1104624.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221890 is 981223.

It is not an unprimeable number, because it can be changed into a prime (3221899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22944 + ... + 23083.

It is an arithmetic number, because the mean of its divisors is an integer number (414252).

Almost surely, 2^3221890 is an apocalyptic number.

3221890 is an abundant number, since it is smaller than the sum of its proper divisors (3406142).

3221890 is a wasteful number, since it uses less digits than its factorization.

3221890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46041.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3221890 is about 1794.9623951493. The cubic root of 3221890 is about 147.6965110343.

The spelling of 3221890 in words is "three million, two hundred twenty-one thousand, eight hundred ninety".