423534738 has 96 divisors (see below), whose sum is σ = 1001329920. Its totient is φ = 118087200.

The previous prime is 423534737. The next prime is 423534739. The reversal of 423534738 is 837435324.

It is an interprime number because it is at equal distance from previous prime (423534737) and next prime (423534739).

It is a junction number, because it is equal to n+sod(n) for n = 423534696 and 423534705.

It is not an unprimeable number, because it can be changed into a prime (423534737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5965243 + ... + 5965313.

It is an arithmetic number, because the mean of its divisors is an integer number (10430520).

Almost surely, 2^423534738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423534738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500664960).

423534738 is an abundant number, since it is smaller than the sum of its proper divisors (577795182).

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

423534738 is a wasteful number, since it uses less digits than its factorization.

423534738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 173 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 423534738 is about 20579.9596209516. The cubic root of 423534738 is about 750.9822614328.

The spelling of 423534738 in words is "four hundred twenty-three million, five hundred thirty-four thousand, seven hundred thirty-eight".