3111940 has 24 divisors (see below), whose sum is σ = 7038360. Its totient is φ = 1148928.

The previous prime is 3111931. The next prime is 3111973. The reversal of 3111940 is 491113.

3111940 = 186² + 187² + ... + 250².

It is a happy number.

3111940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 3069504 = 206^2 + 1752^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5725 + ... + 6244.

It is an arithmetic number, because the mean of its divisors is an integer number (293265).

Almost surely, 2^3111940 is an apocalyptic number.

It is an amenable number.

3111940 is an abundant number, since it is smaller than the sum of its proper divisors (3926420).

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

3111940 is a wasteful number, since it uses less digits than its factorization.

3111940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991 (or 11989 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 3111940 is about 1764.0691596420. The cubic root of 3111940 is about 145.9969349453.

The spelling of 3111940 in words is "three million, one hundred eleven thousand, nine hundred forty".