742661223 has 8 divisors (see below), whose sum is σ = 992685936. Its totient is φ = 493872000.

The previous prime is 742661219. The next prime is 742661273. The reversal of 742661223 is 322166247.

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

It is not a de Polignac number, because 742661223 - 2² = 742661219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742661273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307468 + ... + 309873.

It is an arithmetic number, because the mean of its divisors is an integer number (124085742).

Almost surely, 2^742661223 is an apocalyptic number.

742661223 is a deficient number, since it is larger than the sum of its proper divisors (250024713).

742661223 is a wasteful number, since it uses less digits than its factorization.

742661223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617745.

The product of its digits is 24192, while the sum is 33.

The square root of 742661223 is about 27251.8113709896. The cubic root of 742661223 is about 905.5871460282.

The spelling of 742661223 in words is "seven hundred forty-two million, six hundred sixty-one thousand, two hundred twenty-three".