444023440920 has 48 divisors (see below), whose sum is σ = 1443076184160. Its totient is φ = 118406250816.

The previous prime is 444023440837. The next prime is 444023440921. The reversal of 444023440920 is 29044320444.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444023440921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616698864 + ... + 616699583.

It is an arithmetic number, because the mean of its divisors is an integer number (30064087170).

Almost surely, 2^444023440920 is an apocalyptic number.

444023440920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444023440920 is an abundant number, since it is smaller than the sum of its proper divisors (999052743240).

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

444023440920 is a wasteful number, since it uses less digits than its factorization.

444023440920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233398464 (or 1233398457 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 444023440920 in words is "four hundred forty-four billion, twenty-three million, four hundred forty thousand, nine hundred twenty".