3121944 has 32 divisors (see below), whose sum is σ = 8920320. Its totient is φ = 891936.

The previous prime is 3121933. The next prime is 3121961. The reversal of 3121944 is 4491213.

3121944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 9124 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (278760).

Almost surely, 2^3121944 is an apocalyptic number.

It is an amenable number.

3121944 is an abundant number, since it is smaller than the sum of its proper divisors (5798376).

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

3121944 is a wasteful number, since it uses less digits than its factorization.

3121944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18599 (or 18595 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 3121944 is about 1766.9023742131. The cubic root of 3121944 is about 146.1532137767.

The spelling of 3121944 in words is "three million, one hundred twenty-one thousand, nine hundred forty-four".