4428846945 has 24 divisors (see below), whose sum is σ = 7728201000. Its totient is φ = 2346195456.

The previous prime is 4428846943. The next prime is 4428846959. The reversal of 4428846945 is 5496488244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 4427970849 = 936^2 + 66543^2 .

It is not a de Polignac number, because 4428846945 - 2¹ = 4428846943 is a prime.

It is a super-2 number, since 2×4428846945² = 39229370524471666050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4428846891 and 4428846900.

It is not an unprimeable number, because it can be changed into a prime (4428846941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323560 + ... + 336969.

It is an arithmetic number, because the mean of its divisors is an integer number (322008375).

Almost surely, 2^4428846945 is an apocalyptic number.

4428846945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4428846945 is a deficient number, since it is larger than the sum of its proper divisors (3299354055).

4428846945 is a wasteful number, since it uses less digits than its factorization.

4428846945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660689 (or 660686 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The square root of 4428846945 is about 66549.5826057534. The cubic root of 4428846945 is about 1642.2157914734.

The spelling of 4428846945 in words is "four billion, four hundred twenty-eight million, eight hundred forty-six thousand, nine hundred forty-five".