4018026 has 16 divisors (see below), whose sum is σ = 8100864. Its totient is φ = 1328544.

The previous prime is 4017997. The next prime is 4018039. The reversal of 4018026 is 6208104.

It is a super-2 number, since 2×4018026² = 32289065873352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4017993 and 4018011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875 + ... + 3398.

It is an arithmetic number, because the mean of its divisors is an integer number (506304).

Almost surely, 2^4018026 is an apocalyptic number.

4018026 is an abundant number, since it is smaller than the sum of its proper divisors (4082838).

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

4018026 is a wasteful number, since it uses less digits than its factorization.

4018026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4018026 is about 2004.5014342724. The cubic root of 4018026 is about 158.9782019878.

The spelling of 4018026 in words is "four million, eighteen thousand, twenty-six".