4028730 has 16 divisors (see below), whose sum is σ = 9669024. Its totient is φ = 1074320.

The previous prime is 4028723. The next prime is 4028743. The reversal of 4028730 is 378204.

It is a self number, because there is not a number n which added to its sum of digits gives 4028730.

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, 67116 + ... + 67175.

It is an arithmetic number, because the mean of its divisors is an integer number (604314).

Almost surely, 2^4028730 is an apocalyptic number.

4028730 is an abundant number, since it is smaller than the sum of its proper divisors (5640294).

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

4028730 is a wasteful number, since it uses less digits than its factorization.

4028730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134301.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4028730 is about 2007.1696490332. The cubic root of 4028730 is about 159.1192491751.

The spelling of 4028730 in words is "four million, twenty-eight thousand, seven hundred thirty".