723240412 has 12 divisors (see below), whose sum is σ = 1268610336. Its totient is φ = 360780320.

The previous prime is 723240407. The next prime is 723240437. The reversal of 723240412 is 214042327.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 208033 + ... + 211480.

It is an arithmetic number, because the mean of its divisors is an integer number (105717528).

Almost surely, 2^723240412 is an apocalyptic number.

It is an amenable number.

723240412 is a deficient number, since it is larger than the sum of its proper divisors (545369924).

723240412 is a wasteful number, since it uses less digits than its factorization.

723240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419948 (or 419946 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 723240412 is about 26893.1294571681. The cubic root of 723240412 is about 897.6235295761.

Adding to 723240412 its reverse (214042327), we get a palindrome (937282739).

The spelling of 723240412 in words is "seven hundred twenty-three million, two hundred forty thousand, four hundred twelve".