441555444 has 72 divisors (see below), whose sum is σ = 1256935680. Its totient is φ = 129484800.

The previous prime is 441555437. The next prime is 441555487. The reversal of 441555444 is 444555144.

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

It is a junction number, because it is equal to n+sod(n) for n = 441555399 and 441555408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5709 + ... + 30260.

It is an arithmetic number, because the mean of its divisors is an integer number (17457440).

Almost surely, 2^441555444 is an apocalyptic number.

441555444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

441555444 is an abundant number, since it is smaller than the sum of its proper divisors (815380236).

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

441555444 is a wasteful number, since it uses less digits than its factorization.

441555444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36021 (or 36016 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The square root of 441555444 is about 21013.2206955526. The cubic root of 441555444 is about 761.4856925881.

The spelling of 441555444 in words is "four hundred forty-one million, five hundred fifty-five thousand, four hundred forty-four".