1668342954 has 8 divisors (see below), whose sum is σ = 3336685920. Its totient is φ = 556114316.

The previous prime is 1668342919. The next prime is 1668342971. The reversal of 1668342954 is 4592438661.

It is a sphenic number, since it is the product of 3 distinct primes.

1668342954 is an admirable number.

It is a super-2 number, since 2×1668342954² = 5566736424322892232, which contains 22 as substring.

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, 139028574 + ... + 139028585.

It is an arithmetic number, because the mean of its divisors is an integer number (417085740).

Almost surely, 2^1668342954 is an apocalyptic number.

1668342954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1668342954 is a wasteful number, since it uses less digits than its factorization.

1668342954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278057164.

The product of its digits is 1244160, while the sum is 48.

The square root of 1668342954 is about 40845.3541299375. The cubic root of 1668342954 is about 1186.0284599885.

The spelling of 1668342954 in words is "one billion, six hundred sixty-eight million, three hundred forty-two thousand, nine hundred fifty-four".