420630413620 has 96 divisors (see below), whose sum is σ = 916458439680. Its totient is φ = 161998341120.

The previous prime is 420630413591. The next prime is 420630413629. The reversal of 420630413620 is 26314036024.

It is a super-3 number, since 3×420630413620³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420630413629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107383902 + ... + 107387818.

It is an arithmetic number, because the mean of its divisors is an integer number (9546442080).

Almost surely, 2^420630413620 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 420630413620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458229219840).

420630413620 is an abundant number, since it is smaller than the sum of its proper divisors (495828026060).

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

420630413620 is a wasteful number, since it uses less digits than its factorization.

420630413620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793 (or 4791 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 420630413620 its reverse (26314036024), we get a palindrome (446944449644).

The spelling of 420630413620 in words is "four hundred twenty billion, six hundred thirty million, four hundred thirteen thousand, six hundred twenty".