1768420 has 24 divisors (see below), whose sum is σ = 3843000. Its totient is φ = 682752.

The previous prime is 1768411. The next prime is 1768421. The reversal of 1768420 is 248671.

It can be written as a sum of positive squares in 4 ways, for example, as 20736 + 1747684 = 144^2 + 1322^2 .

It is not an unprimeable number, because it can be changed into a prime (1768421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945 + ... + 2104.

It is an arithmetic number, because the mean of its divisors is an integer number (160125).

2^1768420 is an apocalyptic number.

1768420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768420 is an abundant number, since it is smaller than the sum of its proper divisors (2074580).

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

1768420 is a wasteful number, since it uses less digits than its factorization.

1768420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1768420 is about 1329.8195366289. The cubic root of 1768420 is about 120.9284461859.

The spelling of 1768420 in words is "one million, seven hundred sixty-eight thousand, four hundred twenty".