424668820 has 12 divisors (see below), whose sum is σ = 891804564. Its totient is φ = 169867520.

The previous prime is 424668799. The next prime is 424668841. The reversal of 424668820 is 28866424.

It is an interprime number because it is at equal distance from previous prime (424668799) and next prime (424668841).

It can be written as a sum of positive squares in 2 ways, for example, as 318908164 + 105760656 = 17858^2 + 10284^2 .

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 3 ways as a sum of consecutive naturals, for example, 10616701 + ... + 10616740.

It is an arithmetic number, because the mean of its divisors is an integer number (74317047).

Almost surely, 2^424668820 is an apocalyptic number.

It is an amenable number.

424668820 is an abundant number, since it is smaller than the sum of its proper divisors (467135744).

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

424668820 is a wasteful number, since it uses less digits than its factorization.

424668820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21233450 (or 21233448 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 424668820 is about 20607.4942678628. The cubic root of 424668820 is about 751.6519557551.

The spelling of 424668820 in words is "four hundred twenty-four million, six hundred sixty-eight thousand, eight hundred twenty".