3222920 has 32 divisors (see below), whose sum is σ = 7306200. Its totient is φ = 1279488.

The previous prime is 3222917. The next prime is 3222929. The reversal of 3222920 is 292223.

It can be written as a sum of positive squares in 4 ways, for example, as 3189796 + 33124 = 1786^2 + 182^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3222892 and 3222901.

It is not an unprimeable number, because it can be changed into a prime (3222929) 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, 7676 + ... + 8084.

Almost surely, 2^3222920 is an apocalyptic number.

It is an amenable number.

3222920 is an abundant number, since it is smaller than the sum of its proper divisors (4083280).

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

3222920 is a wasteful number, since it uses less digits than its factorization.

3222920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3222920 is about 1795.2492863110. The cubic root of 3222920 is about 147.7122482981.

The spelling of 3222920 in words is "three million, two hundred twenty-two thousand, nine hundred twenty".