3955445 has 24 divisors (see below), whose sum is σ = 5340672. Its totient is φ = 2808000.

The previous prime is 3955433. The next prime is 3955447. The reversal of 3955445 is 5445593.

3955445 = 61² + 62² + ... + 229².

It is not a de Polignac number, because 3955445 - 2⁴ = 3955429 is a prime.

It is a Duffinian number.

Its product of digits (54000) is a multiple of the sum of its prime divisors (200).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3955447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26120 + ... + 26270.

It is an arithmetic number, because the mean of its divisors is an integer number (222528).

Almost surely, 2^3955445 is an apocalyptic number.

It is an amenable number.

3955445 is a deficient number, since it is larger than the sum of its proper divisors (1385227).

3955445 is a wasteful number, since it uses less digits than its factorization.

3955445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 200 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 3955445 is about 1988.8300580995. The cubic root of 3955445 is about 158.1485144198.

The spelling of 3955445 in words is "three million, nine hundred fifty-five thousand, four hundred forty-five".