2945444 has 6 divisors (see below), whose sum is σ = 5154534. Its totient is φ = 1472720.

The previous prime is 2945441. The next prime is 2945447. The reversal of 2945444 is 4445492.

2945444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2945441) and next prime (2945447).

It can be written as a sum of positive squares in only one way, i.e., 2849344 + 96100 = 1688^2 + 310^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2945444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945441) by changing a digit.

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 as a sum of consecutive naturals, namely, 368177 + ... + 368184.

It is an arithmetic number, because the mean of its divisors is an integer number (859089).

2^2945444 is an apocalyptic number.

It is an amenable number.

2945444 is a deficient number, since it is larger than the sum of its proper divisors (2209090).

2945444 is a wasteful number, since it uses less digits than its factorization.

2945444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736365 (or 736363 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 2945444 is about 1716.2295883710. The cubic root of 2945444 is about 143.3453436243.

It can be divided in two parts, 29 and 45444, that multiplied together give a triangular number (1317876 = T₁₆₂₃).

The spelling of 2945444 in words is "two million, nine hundred forty-five thousand, four hundred forty-four".