723442 has 8 divisors (see below), whose sum is σ = 1132416. Its totient is φ = 345972.

The previous prime is 723439. The next prime is 723451. The reversal of 723442 is 244327.

723442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 7³ + 2¹⁷ + 4² + 3⁷ + 4⁸ + 2¹⁹ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7818 + ... + 7909.

It is an arithmetic number, because the mean of its divisors is an integer number (141552).

2⁷²³⁴⁴² is an apocalyptic number.

723442 is a deficient number, since it is larger than the sum of its proper divisors (408974).

723442 is a wasteful number, since it uses less digits than its factorization.

723442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15752.

The product of its digits is 1344, while the sum is 22.

The square root of 723442 is about 850.5539371492. The cubic root of 723442 is about 89.7706919700.

Adding to 723442 its reverse (244327), we get a palindrome (967769).

The spelling of 723442 in words is "seven hundred twenty-three thousand, four hundred forty-two", and thus it is an iban number.