742246 has 8 divisors (see below), whose sum is σ = 1122264. Its totient is φ = 368160.

The previous prime is 742243. The next prime is 742253. The reversal of 742246 is 642247.

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

It is a self number, because there is not a number n which added to its sum of digits gives 742246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742241) 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, 1155 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (140283).

2⁷⁴²²⁴⁶ is an apocalyptic number.

742246 is a deficient number, since it is larger than the sum of its proper divisors (380018).

742246 is a wasteful number, since it uses less digits than its factorization.

742246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966.

The product of its digits is 2688, while the sum is 25.

The square root of 742246 is about 861.5369986251. The cubic root of 742246 is about 90.5418342856.

Subtracting from 742246 its reverse (642247), we obtain a palindrome (99999).

The spelling of 742246 in words is "seven hundred forty-two thousand, two hundred forty-six".