1790920 has 16 divisors (see below), whose sum is σ = 4029660. Its totient is φ = 716352.

The previous prime is 1790917. The next prime is 1790939. The reversal of 1790920 is 290971.

1790920 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 676 = 1338^2 + 26^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22347 + ... + 22426.

2^1790920 is an apocalyptic number.

1790920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1790920 is an abundant number, since it is smaller than the sum of its proper divisors (2238740).

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

1790920 is a wasteful number, since it uses less digits than its factorization.

1790920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44784 (or 44780 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1790920 is about 1338.2525920020. The cubic root of 1790920 is about 121.4391528100.

The spelling of 1790920 in words is "one million, seven hundred ninety thousand, nine hundred twenty".