4021026 has 16 divisors (see below), whose sum is σ = 8092224. Its totient is φ = 1331984.

The previous prime is 4021019. The next prime is 4021033. The reversal of 4021026 is 6201204.

It is an interprime number because it is at equal distance from previous prime (4021019) and next prime (4021033).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4020996 and 4021014.

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, 1005 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (505764).

Almost surely, 2^4021026 is an apocalyptic number.

4021026 is an abundant number, since it is smaller than the sum of its proper divisors (4071198).

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

4021026 is a wasteful number, since it uses less digits than its factorization.

4021026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4021026 is about 2005.2496103977. The cubic root of 4021026 is about 159.0177583899.

The spelling of 4021026 in words is "four million, twenty-one thousand, twenty-six".