2390020 has 24 divisors (see below), whose sum is σ = 5090904. Its totient is φ = 942336.

The previous prime is 2390009. The next prime is 2390021. The reversal of 2390020 is 200932.

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 2383936 = 78^2 + 1544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2389976 and 2390003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (212121).

2^2390020 is an apocalyptic number.

2390020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2390020 is an abundant number, since it is smaller than the sum of its proper divisors (2700884).

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

2390020 is a wasteful number, since it uses less digits than its factorization.

2390020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2390020 is about 1545.9689518228. The cubic root of 2390020 is about 133.7007504936.

Adding to 2390020 its reverse (200932), we get a palindrome (2590952).

The spelling of 2390020 in words is "two million, three hundred ninety thousand, twenty".