662040443 has 4 divisors (see below), whose sum is σ = 662847648. Its totient is φ = 661233240.

The previous prime is 662040413. The next prime is 662040493. The reversal of 662040443 is 344040266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 662040443 - 2⁸ = 662040187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662040413) 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, 402371 + ... + 404012.

It is an arithmetic number, because the mean of its divisors is an integer number (165711912).

Almost surely, 2^662040443 is an apocalyptic number.

662040443 is a deficient number, since it is larger than the sum of its proper divisors (807205).

662040443 is an equidigital number, since it uses as much as digits as its factorization.

662040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807204.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 662040443 is about 25730.1465794503. The cubic root of 662040443 is about 871.5550832424. Note that the first 3 decimals are identical.

The spelling of 662040443 in words is "six hundred sixty-two million, forty thousand, four hundred forty-three".