441650421 has 16 divisors (see below), whose sum is σ = 688734400. Its totient is φ = 278936784.

The previous prime is 441650411. The next prime is 441650437. The reversal of 441650421 is 124056144.

441650421 is a `hidden beast` number, since 4 + 4 + 1 + 650 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 441650421 - 2⁶ = 441650357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441650411) 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, 429946 + ... + 430971.

It is an arithmetic number, because the mean of its divisors is an integer number (43045900).

Almost surely, 2^441650421 is an apocalyptic number.

It is an amenable number.

441650421 is a deficient number, since it is larger than the sum of its proper divisors (247083979).

441650421 is a wasteful number, since it uses less digits than its factorization.

441650421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860945 (or 860939 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 441650421 is about 21015.4805084252. The cubic root of 441650421 is about 761.5402862922.

The spelling of 441650421 in words is "four hundred forty-one million, six hundred fifty thousand, four hundred twenty-one".