2028730 has 16 divisors (see below), whose sum is σ = 3983904. Its totient is φ = 737680.

The previous prime is 2028713. The next prime is 2028749. The reversal of 2028730 is 378202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 9112 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (248994).

2^2028730 is an apocalyptic number.

2028730 is a deficient number, since it is larger than the sum of its proper divisors (1955174).

2028730 is a wasteful number, since it uses less digits than its factorization.

2028730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2028730 is about 1424.3349325211. The cubic root of 2028730 is about 126.5925312569.

The spelling of 2028730 in words is "two million, twenty-eight thousand, seven hundred thirty".