723242 has 8 divisors (see below), whose sum is σ = 1168356. Its totient is φ = 333792.

The previous prime is 723227. The next prime is 723257. The reversal of 723242 is 242327.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (723227) and next prime (723257).

It can be written as a sum of positive squares in 2 ways, for example, as 703921 + 19321 = 839^2 + 139^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723242.

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, 13883 + ... + 13934.

2⁷²³²⁴² is an apocalyptic number.

723242 is a deficient number, since it is larger than the sum of its proper divisors (445114).

723242 is a wasteful number, since it uses less digits than its factorization.

723242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832.

The product of its digits is 672, while the sum is 20.

The square root of 723242 is about 850.4363585831. The cubic root of 723242 is about 89.7624186538.

Adding to 723242 its reverse (242327), we get a palindrome (965569).

The spelling of 723242 in words is "seven hundred twenty-three thousand, two hundred forty-two", and thus it is an iban number.