4000026 has 8 divisors (see below), whose sum is σ = 8000064. Its totient is φ = 1333340.

The previous prime is 3999971. The next prime is 4000037. The reversal of 4000026 is 6200004.

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

4000026 is an admirable number.

4000026 is a modest number, since divided by 26 gives 4 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3999975 and 4000020.

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, 333330 + ... + 333341.

It is an arithmetic number, because the mean of its divisors is an integer number (1000008).

Almost surely, 2^4000026 is an apocalyptic number.

4000026 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.

4000026 is a wasteful number, since it uses less digits than its factorization.

4000026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666676.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4000026 is about 2000.0064999894. The cubic root of 4000026 is about 158.7404491330.

The spelling of 4000026 in words is "four million, twenty-six", and thus it is an aban number.