423414420660 has 384 divisors, whose sum is σ = 1650703380480. Its totient is φ = 87533913600.

The previous prime is 423414420643. The next prime is 423414420791. The reversal of 423414420660 is 66024414324.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8165415 + ... + 8217105.

It is an arithmetic number, because the mean of its divisors is an integer number (4298706720).

Almost surely, 2^423414420660 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 423414420660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825351690240).

423414420660 is an abundant number, since it is smaller than the sum of its proper divisors (1227288959820).

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

423414420660 is a wasteful number, since it uses less digits than its factorization.

423414420660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51924 (or 51916 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 423414420660 its reverse (66024414324), we get a palindrome (489438834984).

The spelling of 423414420660 in words is "four hundred twenty-three billion, four hundred fourteen million, four hundred twenty thousand, six hundred sixty".