1668014838 has 48 divisors (see below), whose sum is σ = 4140747936. Its totient is φ = 475372800.

The previous prime is 1668014833. The next prime is 1668014851. The reversal of 1668014838 is 8384108661.

It is a happy number.

1668014838 is a `hidden beast` number, since 166 + 8 + 0 + 1 + 483 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1668014793 and 1668014802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668014833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34020 + ... + 67032.

It is an arithmetic number, because the mean of its divisors is an integer number (86265582).

Almost surely, 2^1668014838 is an apocalyptic number.

1668014838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1668014838 is an abundant number, since it is smaller than the sum of its proper divisors (2472733098).

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

1668014838 is a wasteful number, since it uses less digits than its factorization.

1668014838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33429 (or 33426 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1668014838 is about 40841.3373679168. The cubic root of 1668014838 is about 1185.9507021095.

The spelling of 1668014838 in words is "one billion, six hundred sixty-eight million, fourteen thousand, eight hundred thirty-eight".