662243441 has 4 divisors (see below), whose sum is σ = 663228132. Its totient is φ = 661258752.

The previous prime is 662243419. The next prime is 662243443. The reversal of 662243441 is 144342266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144342266 = 2 ⋅72171133.

It can be written as a sum of positive squares in 2 ways, for example, as 495730225 + 166513216 = 22265^2 + 12904^2 .

It is a cyclic number.

It is not a de Polignac number, because 662243441 - 2⁶ = 662243377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662243398 and 662243407.

It is not an unprimeable number, because it can be changed into a prime (662243443) 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, 491336 + ... + 492681.

It is an arithmetic number, because the mean of its divisors is an integer number (165807033).

Almost surely, 2^662243441 is an apocalyptic number.

It is an amenable number.

662243441 is a deficient number, since it is larger than the sum of its proper divisors (984691).

662243441 is an equidigital number, since it uses as much as digits as its factorization.

662243441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984690.

The product of its digits is 27648, while the sum is 32.

The square root of 662243441 is about 25734.0910272735. The cubic root of 662243441 is about 871.6441542655.

The spelling of 662243441 in words is "six hundred sixty-two million, two hundred forty-three thousand, four hundred forty-one".