723276340 has 24 divisors (see below), whose sum is σ = 1554204960. Its totient is φ = 282582048.

The previous prime is 723276311. The next prime is 723276341. The reversal of 723276340 is 43672327.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 723276296 and 723276305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723276341) 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 7 ways as a sum of consecutive naturals, for example, 419650 + ... + 421369.

It is an arithmetic number, because the mean of its divisors is an integer number (64758540).

Almost surely, 2^723276340 is an apocalyptic number.

It is an amenable number.

723276340 is an abundant number, since it is smaller than the sum of its proper divisors (830928620).

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

723276340 is a wasteful number, since it uses less digits than its factorization.

723276340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841071 (or 841069 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 723276340 is about 26893.7974261725. The cubic root of 723276340 is about 897.6383929067.

The spelling of 723276340 in words is "seven hundred twenty-three million, two hundred seventy-six thousand, three hundred forty".