650002020 has 24 divisors (see below), whose sum is σ = 1820005824. Its totient is φ = 173333856.

The previous prime is 650002019. The next prime is 650002033. The reversal of 650002020 is 20200056.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 5416624 + ... + 5416743.

It is an arithmetic number, because the mean of its divisors is an integer number (75833576).

Almost surely, 2^650002020 is an apocalyptic number.

650002020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

650002020 is an abundant number, since it is smaller than the sum of its proper divisors (1170003804).

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

650002020 is a wasteful number, since it uses less digits than its factorization.

650002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10833379 (or 10833377 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 650002020 is about 25495.1371833924. The cubic root of 650002020 is about 866.2400026748.

Adding to 650002020 its reverse (20200056), we get a palindrome (670202076).

The spelling of 650002020 in words is "six hundred fifty million, two thousand, twenty".