723434528 has 48 divisors (see below), whose sum is σ = 1465599744. Its totient is φ = 351336960.

The previous prime is 723434527. The next prime is 723434561. The reversal of 723434528 is 825434327.

It is a junction number, because it is equal to n+sod(n) for n = 723434491 and 723434500.

It is not an unprimeable number, because it can be changed into a prime (723434527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204293 + ... + 207803.

It is an arithmetic number, because the mean of its divisors is an integer number (30533328).

Almost surely, 2^723434528 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 723434528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732799872).

723434528 is an abundant number, since it is smaller than the sum of its proper divisors (742165216).

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

723434528 is a wasteful number, since it uses less digits than its factorization.

723434528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705 (or 3697 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 723434528 is about 26896.7382409094. The cubic root of 723434528 is about 897.7038290633.

The spelling of 723434528 in words is "seven hundred twenty-three million, four hundred thirty-four thousand, five hundred twenty-eight".