423466520400 has 960 divisors, whose sum is σ = 1978116249600. Its totient is φ = 83358720000.

The previous prime is 423466520377. The next prime is 423466520401. The reversal of 423466520400 is 4025664324.

423466520400 is a `hidden beast` number, since 4 + 2 + 34 + 66 + 520 + 40 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423466520401) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15787000 + ... + 15813800.

It is an arithmetic number, because the mean of its divisors is an integer number (2060537760).

Almost surely, 2^423466520400 is an apocalyptic number.

423466520400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423466520400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989058124800).

423466520400 is an abundant number, since it is smaller than the sum of its proper divisors (1554649729200).

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

423466520400 is a wasteful number, since it uses less digits than its factorization.

423466520400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26865 (or 26848 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 423466520400 in words is "four hundred twenty-three billion, four hundred sixty-six million, five hundred twenty thousand, four hundred".