4419945 has 12 divisors (see below), whose sum is σ = 7661316. Its totient is φ = 2357280.

The previous prime is 4419941. The next prime is 4419953. The reversal of 4419945 is 5499144.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 870489 + 3549456 = 933^2 + 1884^2 .

It is not a de Polignac number, because 4419945 - 2² = 4419941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4419941) 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 in 11 ways as a sum of consecutive naturals, for example, 49066 + ... + 49155.

It is an arithmetic number, because the mean of its divisors is an integer number (638443).

Almost surely, 2^4419945 is an apocalyptic number.

4419945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4419945 is a deficient number, since it is larger than the sum of its proper divisors (3241371).

4419945 is a wasteful number, since it uses less digits than its factorization.

4419945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98232 (or 98229 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4419945 is about 2102.3665237061. The cubic root of 4419945 is about 164.1114773502. Note that the first 3 decimals are identical.

It can be divided in two parts, 44199 and 45, that added together give a palindrome (44244).

The spelling of 4419945 in words is "four million, four hundred nineteen thousand, nine hundred forty-five".