4001968 has 10 divisors (see below), whose sum is σ = 7753844. Its totient is φ = 2000976.

The previous prime is 4001947. The next prime is 4001999. The reversal of 4001968 is 8691004.

It is a super-3 number, since 3×4001968³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125046 + ... + 125077.

Almost surely, 2^4001968 is an apocalyptic number.

It is an amenable number.

4001968 is a deficient number, since it is larger than the sum of its proper divisors (3751876).

4001968 is a wasteful number, since it uses less digits than its factorization.

4001968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250131 (or 250125 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 4001968 is about 2000.4919394989. The cubic root of 4001968 is about 158.7661343058.

The spelling of 4001968 in words is "four million, one thousand, nine hundred sixty-eight".