423455400 has 144 divisors (see below), whose sum is σ = 1455442560. Its totient is φ = 110275200.

The previous prime is 423455377. The next prime is 423455401. The reversal of 423455400 is 4554324.

It is not an unprimeable number, because it can be changed into a prime (423455401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74665 + ... + 80135.

It is an arithmetic number, because the mean of its divisors is an integer number (10107240).

Almost surely, 2^423455400 is an apocalyptic number.

423455400 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 423455400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727721280).

423455400 is an abundant number, since it is smaller than the sum of its proper divisors (1031987160).

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

423455400 is a wasteful number, since it uses less digits than its factorization.

423455400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536 (or 5524 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 423455400 is about 20578.0319758717. The cubic root of 423455400 is about 750.9353663016.

The spelling of 423455400 in words is "four hundred twenty-three million, four hundred fifty-five thousand, four hundred".