1740020 has 36 divisors (see below), whose sum is σ = 3872484. Its totient is φ = 656640.

The previous prime is 1739981. The next prime is 1740041. The reversal of 1740020 is 200471.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 976144 + 763876 = 988^2 + 874^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1739977 and 1740004.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 7100 + ... + 7340.

It is an arithmetic number, because the mean of its divisors is an integer number (107569).

2^1740020 is an apocalyptic number.

1740020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1740020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936242).

1740020 is an abundant number, since it is smaller than the sum of its proper divisors (2132464).

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

1740020 is a wasteful number, since it uses less digits than its factorization.

1740020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1740020 is about 1319.0981767859. The cubic root of 1740020 is about 120.2775980731.

Adding to 1740020 its reverse (200471), we get a palindrome (1940491).

The spelling of 1740020 in words is "one million, seven hundred forty thousand, twenty".