423242100 has 216 divisors, whose sum is σ = 1425846240. Its totient is φ = 104682240.

The previous prime is 423242093. The next prime is 423242107. The reversal of 423242100 is 1242324.

423242100 is a `hidden beast` number, since 423 + 242 + 1 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (423242093) and next prime (423242107).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423242107) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 906067 + ... + 906533.

It is an arithmetic number, because the mean of its divisors is an integer number (6601140).

Almost surely, 2^423242100 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 423242100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712923120).

423242100 is an abundant number, since it is smaller than the sum of its proper divisors (1002604140).

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

423242100 is a wasteful number, since it uses less digits than its factorization.

423242100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 423242100 is about 20572.8486117018. The cubic root of 423242100 is about 750.8092598173.

Adding to 423242100 its reverse (1242324), we get a palindrome (424484424).

The spelling of 423242100 in words is "four hundred twenty-three million, two hundred forty-two thousand, one hundred".