444406020420 has 48 divisors (see below), whose sum is σ = 1244366323200. Its totient is φ = 118505465856.

The previous prime is 444406020419. The next prime is 444406020437. The reversal of 444406020420 is 24020604444.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4198669 + ... + 4303211.

It is an arithmetic number, because the mean of its divisors is an integer number (25924298400).

Almost surely, 2^444406020420 is an apocalyptic number.

It is an amenable number.

444406020420 is an abundant number, since it is smaller than the sum of its proper divisors (799960302780).

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

444406020420 is a wasteful number, since it uses less digits than its factorization.

444406020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175404 (or 175402 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 444406020420 its reverse (24020604444), we get a palindrome (468426624864).

The spelling of 444406020420 in words is "four hundred forty-four billion, four hundred six million, twenty thousand, four hundred twenty".