4445122444 has 48 divisors (see below), whose sum is σ = 9004746240. Its totient is φ = 1880588160.

The previous prime is 4445122417. The next prime is 4445122459. The reversal of 4445122444 is 4442215444.

It is a happy number.

It is a super-2 number, since 2×4445122444² = 39518227084305066272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2209399 + ... + 2211409.

It is an arithmetic number, because the mean of its divisors is an integer number (187598880).

Almost surely, 2^4445122444 is an apocalyptic number.

It is an amenable number.

4445122444 is an abundant number, since it is smaller than the sum of its proper divisors (4559623796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4445122444 is a wasteful number, since it uses less digits than its factorization.

4445122444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 2996 counting only the distinct ones).

The product of its digits is 81920, while the sum is 34.

The square root of 4445122444 is about 66671.7514694192. The cubic root of 4445122444 is about 1644.2249831706.

Adding to 4445122444 its reverse (4442215444), we get a palindrome (8887337888).

The spelling of 4445122444 in words is "four billion, four hundred forty-five million, one hundred twenty-two thousand, four hundred forty-four".