723042388 has 12 divisors (see below), whose sum is σ = 1306141312. Its totient is φ = 349859160.

The previous prime is 723042379. The next prime is 723042389. The reversal of 723042388 is 883240327.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723042389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915370 + ... + 2915617.

Almost surely, 2^723042388 is an apocalyptic number.

It is an amenable number.

723042388 is a deficient number, since it is larger than the sum of its proper divisors (583098924).

723042388 is a wasteful number, since it uses less digits than its factorization.

723042388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831022 (or 5831020 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 723042388 is about 26889.4475212861. The cubic root of 723042388 is about 897.5415986699.

The spelling of 723042388 in words is "seven hundred twenty-three million, forty-two thousand, three hundred eighty-eight".