723434560 has 28 divisors (see below), whose sum is σ = 1722679308. Its totient is φ = 289373696.

The previous prime is 723434527. The next prime is 723434561. The reversal of 723434560 is 65434327.

It can be written as a sum of positive squares in 2 ways, for example, as 504631296 + 218803264 = 22464^2 + 14792^2 .

It is not an unprimeable number, because it can be changed into a prime (723434561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130047 + ... + 1130686.

It is an arithmetic number, because the mean of its divisors is an integer number (61524261).

Almost surely, 2^723434560 is an apocalyptic number.

It is an amenable number.

723434560 is an abundant number, since it is smaller than the sum of its proper divisors (999244748).

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

723434560 is a wasteful number, since it uses less digits than its factorization.

723434560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260750 (or 2260740 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 723434560 is about 26896.7388357771. The cubic root of 723434560 is about 897.7038422994.

Adding to 723434560 its reverse (65434327), we get a palindrome (788868887).

The spelling of 723434560 in words is "seven hundred twenty-three million, four hundred thirty-four thousand, five hundred sixty".