423278352 has 320 divisors, whose sum is σ = 1499904000. Its totient is φ = 111601152.

The previous prime is 423278341. The next prime is 423278353. The reversal of 423278352 is 253872324.

423278352 is a `hidden beast` number, since 4 + 232 + 78 + 352 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (423278353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3045099 + ... + 3045237.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 2^423278352 is an apocalyptic number.

423278352 is a gapful number since it is divisible by the number (42) 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 423278352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749952000).

423278352 is an abundant number, since it is smaller than the sum of its proper divisors (1076625648).

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

423278352 is a wasteful number, since it uses less digits than its factorization.

423278352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 223 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 423278352 is about 20573.7296570165. The cubic root of 423278352 is about 750.8306955868.

The spelling of 423278352 in words is "four hundred twenty-three million, two hundred seventy-eight thousand, three hundred fifty-two".