44040040420 has 12 divisors (see below), whose sum is σ = 92484084924. Its totient is φ = 17616016160.

The previous prime is 44040040361. The next prime is 44040040453. The reversal of 44040040420 is 2404004044.

It can be written as a sum of positive squares in 2 ways, for example, as 16979132416 + 27060908004 = 130304^2 + 164502^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44040040391 and 44040040400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101000991 + ... + 1101001030.

It is an arithmetic number, because the mean of its divisors is an integer number (7707007077).

Almost surely, 2^44040040420 is an apocalyptic number.

It is an amenable number.

44040040420 is an abundant number, since it is smaller than the sum of its proper divisors (48444044504).

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

44040040420 is a wasteful number, since it uses less digits than its factorization.

44040040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202002030 (or 2202002028 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 44040040420 its reverse (2404004044), we get a palindrome (46444044464).

The spelling of 44040040420 in words is "forty-four billion, forty million, forty thousand, four hundred twenty".