1790028 has 36 divisors (see below), whose sum is σ = 4764760. Its totient is φ = 565056.

The previous prime is 1789999. The next prime is 1790029. The reversal of 1790028 is 8200971.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1789983 and 1790010.

It is not an unprimeable number, because it can be changed into a prime (1790029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625 + ... + 1992.

2^1790028 is an apocalyptic number.

1790028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1790028 is an abundant number, since it is smaller than the sum of its proper divisors (2974732).

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

1790028 is a wasteful number, since it uses less digits than its factorization.

1790028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646 (or 2641 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1790028 is about 1337.9192800763. The cubic root of 1790028 is about 121.4189878085.

Adding to 1790028 its reverse (8200971), we get a palindrome (9990999).

The spelling of 1790028 in words is "one million, seven hundred ninety thousand, twenty-eight".