2020402420 has 24 divisors (see below), whose sum is σ = 4306173984. Its totient is φ = 796098336.

The previous prime is 2020402403. The next prime is 2020402457. The reversal of 2020402420 is 242040202.

It is a junction number, because it is equal to n+sod(n) for n = 2020402394 and 2020402403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752542 + ... + 755221.

It is an arithmetic number, because the mean of its divisors is an integer number (179423916).

Almost surely, 2^2020402420 is an apocalyptic number.

2020402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020402420 is an abundant number, since it is smaller than the sum of its proper divisors (2285771564).

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

2020402420 is a wasteful number, since it uses less digits than its factorization.

2020402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507839 (or 1507837 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2020402420 is about 44948.8867492845. The cubic root of 2020402420 is about 1264.1908034949.

Adding to 2020402420 its reverse (242040202), we get a palindrome (2262442622).

The spelling of 2020402420 in words is "two billion, twenty million, four hundred two thousand, four hundred twenty".