44004020220 has 36 divisors (see below), whose sum is σ = 133478861880. Its totient is φ = 11734405344.

The previous prime is 44004020171. The next prime is 44004020299. The reversal of 44004020220 is 2202040044.

44004020220 is a `hidden beast` number, since 4 + 40 + 0 + 402 + 0 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 44004020193 and 44004020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122233210 + ... + 122233569.

Almost surely, 2^44004020220 is an apocalyptic number.

It is an amenable number.

44004020220 is an abundant number, since it is smaller than the sum of its proper divisors (89474841660).

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

44004020220 is a wasteful number, since it uses less digits than its factorization.

44004020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244466794 (or 244466789 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 44004020220 its reverse (2202040044), we get a palindrome (46206060264).

The spelling of 44004020220 in words is "forty-four billion, four million, twenty thousand, two hundred twenty".