441651641 has 2 divisors, whose sum is σ = 441651642. Its totient is φ = 441651640.

The previous prime is 441651607. The next prime is 441651671. The reversal of 441651641 is 146156144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428655616 + 12996025 = 20704^2 + 3605^2 .

It is a cyclic number.

It is not a de Polignac number, because 441651641 - 2¹⁰ = 441650617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 441651598 and 441651607.

It is not a weakly prime, because it can be changed into another prime (441651671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220825820 + 220825821.

It is an arithmetic number, because the mean of its divisors is an integer number (220825821).

Almost surely, 2^441651641 is an apocalyptic number.

It is an amenable number.

441651641 is a deficient number, since it is larger than the sum of its proper divisors (1).

441651641 is an equidigital number, since it uses as much as digits as its factorization.

441651641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 441651641 is about 21015.5095346270. The cubic root of 441651641 is about 761.5409875091.

The spelling of 441651641 in words is "four hundred forty-one million, six hundred fifty-one thousand, six hundred forty-one".