423277056 has 160 divisors (see below), whose sum is σ = 1274412480. Its totient is φ = 138682368.

The previous prime is 423277051. The next prime is 423277091. The reversal of 423277056 is 650772324.

It is a happy number.

It is a super-2 number, since 2×423277056² = 358326932272054272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 423277056.

It is not an unprimeable number, because it can be changed into a prime (423277051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925980 + ... + 926436.

It is an arithmetic number, because the mean of its divisors is an integer number (7965078).

Almost surely, 2^423277056 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 423277056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637206240).

423277056 is an abundant number, since it is smaller than the sum of its proper divisors (851135424).

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

423277056 is an equidigital number, since it uses as much as digits as its factorization.

423277056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 423277056 is about 20573.6981605155. The cubic root of 423277056 is about 750.8299292844.

The spelling of 423277056 in words is "four hundred twenty-three million, two hundred seventy-seven thousand, fifty-six".