4445945 has 16 divisors (see below), whose sum is σ = 6203520. Its totient is φ = 2995584.

The previous prime is 4445941. The next prime is 4445953. The reversal of 4445945 is 5495444.

It is a cyclic number.

It is not a de Polignac number, because 4445945 - 2² = 4445941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4445941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989 + ... + 3141.

It is an arithmetic number, because the mean of its divisors is an integer number (387720).

Almost surely, 2^4445945 is an apocalyptic number.

It is an amenable number.

4445945 is a deficient number, since it is larger than the sum of its proper divisors (1757575).

4445945 is a wasteful number, since it uses less digits than its factorization.

4445945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its digits is 57600, while the sum is 35.

The square root of 4445945 is about 2108.5409647432. The cubic root of 4445945 is about 164.4326396478.

The spelling of 4445945 in words is "four million, four hundred forty-five thousand, nine hundred forty-five".