1668370352 has 20 divisors (see below), whose sum is σ = 3526328616. Its totient is φ = 758350080.

The previous prime is 1668370349. The next prime is 1668370381. The reversal of 1668370352 is 2530738661.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4739513 + ... + 4739864.

Almost surely, 2^1668370352 is an apocalyptic number.

It is an amenable number.

1668370352 is an abundant number, since it is smaller than the sum of its proper divisors (1857958264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668370352 is a wasteful number, since it uses less digits than its factorization.

1668370352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479396 (or 9479390 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1668370352 is about 40845.6895155413. The cubic root of 1668370352 is about 1186.0349523846.

The spelling of 1668370352 in words is "one billion, six hundred sixty-eight million, three hundred seventy thousand, three hundred fifty-two".