742722 has 8 divisors (see below), whose sum is σ = 1485456. Its totient is φ = 247572.

The previous prime is 742717. The next prime is 742723. The reversal of 742722 is 227247.

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

742722 is an admirable number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 742692 and 742701.

It is not an unprimeable number, because it can be changed into a prime (742723) by changing a digit.

742722 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61888 + ... + 61899.

It is an arithmetic number, because the mean of its divisors is an integer number (185682).

2⁷⁴²⁷²² is an apocalyptic number.

742722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

742722 is a wasteful number, since it uses less digits than its factorization.

742722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123792.

The product of its digits is 1568, while the sum is 24.

The square root of 742722 is about 861.8132048188. The cubic root of 742722 is about 90.5611848798.

Adding to 742722 its reverse (227247), we get a palindrome (969969).

The spelling of 742722 in words is "seven hundred forty-two thousand, seven hundred twenty-two", and thus it is an iban number.