44444444420 has 24 divisors (see below), whose sum is σ = 94382026200. Its totient is φ = 17578026752.

The previous prime is 44444444413. The next prime is 44444444441. The reversal of 44444444420 is 2444444444.

It can be written as a sum of positive squares in 4 ways, for example, as 215296 + 44444229124 = 464^2 + 210818^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12482615 + ... + 12486174.

It is an arithmetic number, because the mean of its divisors is an integer number (3932584425).

Almost surely, 2^44444444420 is an apocalyptic number.

It is an amenable number.

44444444420 is an abundant number, since it is smaller than the sum of its proper divisors (49937581780).

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

44444444420 is a wasteful number, since it uses less digits than its factorization.

44444444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24968887 (or 24968885 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 38.

Adding to 44444444420 its reverse (2444444444), we get a palindrome (46888888864).

The spelling of 44444444420 in words is "forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred twenty".