44002400420 has 24 divisors (see below), whose sum is σ = 100805499648. Its totient is φ = 16000872800.

The previous prime is 44002400419. The next prime is 44002400441. The reversal of 44002400420 is 2400420044.

It is a super-2 number, since 2×44002400420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 44002400392 and 44002400401.

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, 100005236 + ... + 100005675.

It is an arithmetic number, because the mean of its divisors is an integer number (4200229152).

Almost surely, 2^44002400420 is an apocalyptic number.

It is an amenable number.

44002400420 is an abundant number, since it is smaller than the sum of its proper divisors (56803099228).

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

44002400420 is a wasteful number, since it uses less digits than its factorization.

44002400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200010931 (or 200010929 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44002400420 its reverse (2400420044), we get a palindrome (46402820464).

The spelling of 44002400420 in words is "forty-four billion, two million, four hundred thousand, four hundred twenty".