423755430 has 192 divisors, whose sum is σ = 1295419392. Its totient is φ = 88058880.

The previous prime is 423755429. The next prime is 423755443. The reversal of 423755430 is 34557324.

It is a junction number, because it is equal to n+sod(n) for n = 423755391 and 423755400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 774417 + ... + 774963.

It is an arithmetic number, because the mean of its divisors is an integer number (6746976).

Almost surely, 2^423755430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423755430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647709696).

423755430 is an abundant number, since it is smaller than the sum of its proper divisors (871663962).

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

423755430 is a wasteful number, since it uses less digits than its factorization.

423755430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 33.

The square root of 423755430 is about 20585.3207407609. The cubic root of 423755430 is about 751.1126773381.

The spelling of 423755430 in words is "four hundred twenty-three million, seven hundred fifty-five thousand, four hundred thirty".