4001926 has 4 divisors (see below), whose sum is σ = 6002892. Its totient is φ = 2000962.

The previous prime is 4001891. The next prime is 4001939. The reversal of 4001926 is 6291004.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4001897 and 4001906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000480 + ... + 1000483.

It is an arithmetic number, because the mean of its divisors is an integer number (1500723).

Almost surely, 2^4001926 is an apocalyptic number.

4001926 is a deficient number, since it is larger than the sum of its proper divisors (2000966).

4001926 is a wasteful number, since it uses less digits than its factorization.

4001926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000965.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4001926 is about 2000.4814420534. The cubic root of 4001926 is about 158.7655788956.

The spelling of 4001926 in words is "four million, one thousand, nine hundred twenty-six".