742822 has 8 divisors (see below), whose sum is σ = 1150272. Its totient is φ = 359400.

The previous prime is 742817. The next prime is 742891. The reversal of 742822 is 228247.

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

It is a congruent number.

It is an unprimeable number.

742822 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 5929 + ... + 6052.

It is an arithmetic number, because the mean of its divisors is an integer number (143784).

2⁷⁴²⁸²² is an apocalyptic number.

742822 is a deficient number, since it is larger than the sum of its proper divisors (407450).

742822 is a wasteful number, since it uses less digits than its factorization.

742822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12014.

The product of its digits is 1792, while the sum is 25.

The square root of 742822 is about 861.8712200787. The cubic root of 742822 is about 90.5652490798.

The spelling of 742822 in words is "seven hundred forty-two thousand, eight hundred twenty-two".