669517342 has 24 divisors (see below), whose sum is σ = 1096527096. Its totient is φ = 304736928.

The previous prime is 669517333. The next prime is 669517367. The reversal of 669517342 is 243715966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1201728 + ... + 1202284.

It is an arithmetic number, because the mean of its divisors is an integer number (45688629).

Almost surely, 2^669517342 is an apocalyptic number.

669517342 is a deficient number, since it is larger than the sum of its proper divisors (427009754).

669517342 is an equidigital number, since it uses as much as digits as its factorization.

669517342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 655 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 669517342 is about 25875.0331787227. The cubic root of 669517342 is about 874.8238413265.

The spelling of 669517342 in words is "six hundred sixty-nine million, five hundred seventeen thousand, three hundred forty-two".