4028670 has 64 divisors (see below), whose sum is σ = 11024640. Its totient is φ = 1046304.

The previous prime is 4028663. The next prime is 4028681. The reversal of 4028670 is 768204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11437 + ... + 11783.

It is an arithmetic number, because the mean of its divisors is an integer number (172260).

Almost surely, 2^4028670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4028670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5512320).

4028670 is an abundant number, since it is smaller than the sum of its proper divisors (6995970).

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

4028670 is a wasteful number, since it uses less digits than its factorization.

4028670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4028670 is about 2007.1547025578. The cubic root of 4028670 is about 159.1184592486.

The spelling of 4028670 in words is "four million, twenty-eight thousand, six hundred seventy".