424100020 has 48 divisors (see below), whose sum is σ = 946708560. Its totient is φ = 159033344.

The previous prime is 424099987. The next prime is 424100021. The reversal of 424100020 is 20001424.

It can be written as a sum of positive squares in 8 ways, for example, as 41036836 + 383063184 = 6406^2 + 19572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424100021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89142 + ... + 93778.

It is an arithmetic number, because the mean of its divisors is an integer number (19723095).

Almost surely, 2^424100020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473354280).

424100020 is an abundant number, since it is smaller than the sum of its proper divisors (522608540).

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

424100020 is a wasteful number, since it uses less digits than its factorization.

424100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 4930 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 424100020 is about 20593.6888390594. The cubic root of 424100020 is about 751.3162191088.

Adding to 424100020 its reverse (20001424), we get a palindrome (444101444).

The spelling of 424100020 in words is "four hundred twenty-four million, one hundred thousand, twenty".