1441605641 has 4 divisors (see below), whose sum is σ = 1647549312. Its totient is φ = 1235661972.

The previous prime is 1441605637. The next prime is 1441605673. The reversal of 1441605641 is 1465061441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1441605641 - 2² = 1441605637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1441605598 and 1441605607.

It is not an unprimeable number, because it can be changed into a prime (1441605541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102971825 + ... + 102971838.

It is an arithmetic number, because the mean of its divisors is an integer number (411887328).

Almost surely, 2^1441605641 is an apocalyptic number.

It is an amenable number.

1441605641 is a deficient number, since it is larger than the sum of its proper divisors (205943671).

1441605641 is an equidigital number, since it uses as much as digits as its factorization.

1441605641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205943670.

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

The square root of 1441605641 is about 37968.4822056400. The cubic root of 1441605641 is about 1129.6627915428.

The spelling of 1441605641 in words is "one billion, four hundred forty-one million, six hundred five thousand, six hundred forty-one".