3122920 has 32 divisors (see below), whose sum is σ = 7105320. Its totient is φ = 1235200.

The previous prime is 3122893. The next prime is 3122927. The reversal of 3122920 is 292213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2566404 + 556516 = 1602^2 + 746^2 .

It is not an unprimeable number, because it can be changed into a prime (3122927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3654 + ... + 4426.

Almost surely, 2^3122920 is an apocalyptic number.

It is an amenable number.

3122920 is an abundant number, since it is smaller than the sum of its proper divisors (3982400).

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

3122920 is a wasteful number, since it uses less digits than its factorization.

3122920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3122920 is about 1767.1785421966. The cubic root of 3122920 is about 146.1684426078.

The spelling of 3122920 in words is "three million, one hundred twenty-two thousand, nine hundred twenty".