3945044 has 24 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 1873760.

The previous prime is 3945031. The next prime is 3945047. The reversal of 3945044 is 4405493.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 3944998 and 3945016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945047) 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, 7997 + ... + 8475.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^3945044 is an apocalyptic number.

It is an amenable number.

3945044 is a deficient number, since it is larger than the sum of its proper divisors (3312556).

3945044 is a wasteful number, since it uses less digits than its factorization.

3945044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3945044 is about 1986.2134829872. The cubic root of 3945044 is about 158.0097734701.

The spelling of 3945044 in words is "three million, nine hundred forty-five thousand, forty-four".