423550864 has 20 divisors (see below), whose sum is σ = 895232880. Its totient is φ = 192523040.

The previous prime is 423550859. The next prime is 423550867. The reversal of 423550864 is 468055324.

It is not an unprimeable number, because it can be changed into a prime (423550867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203094 + ... + 1203445.

It is an arithmetic number, because the mean of its divisors is an integer number (44761644).

Almost surely, 2^423550864 is an apocalyptic number.

423550864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

423550864 is an abundant number, since it is smaller than the sum of its proper divisors (471682016).

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

423550864 is a wasteful number, since it uses less digits than its factorization.

423550864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406558 (or 2406552 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 423550864 is about 20580.3514061349. The cubic root of 423550864 is about 750.9917924780.

The spelling of 423550864 in words is "four hundred twenty-three million, five hundred fifty thousand, eight hundred sixty-four".