444789420 has 48 divisors (see below), whose sum is σ = 1274380800. Its totient is φ = 115851456.

The previous prime is 444789419. The next prime is 444789427. The reversal of 444789420 is 24987444.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (444789427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83620 + ... + 88779.

It is an arithmetic number, because the mean of its divisors is an integer number (26549600).

Almost surely, 2^444789420 is an apocalyptic number.

It is an amenable number.

444789420 is an abundant number, since it is smaller than the sum of its proper divisors (829591380).

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

444789420 is a wasteful number, since it uses less digits than its factorization.

444789420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172454 (or 172452 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 444789420 is about 21090.0312944291. The cubic root of 444789420 is about 763.3402265204.

The spelling of 444789420 in words is "four hundred forty-four million, seven hundred eighty-nine thousand, four hundred twenty".