742356742 has 16 divisors (see below), whose sum is σ = 1145837952. Its totient is φ = 360492480.

The previous prime is 742356739. The next prime is 742356757. The reversal of 742356742 is 247653247.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 742356695 and 742356704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 38584.

It is an arithmetic number, because the mean of its divisors is an integer number (71614872).

Almost surely, 2^742356742 is an apocalyptic number.

742356742 is a deficient number, since it is larger than the sum of its proper divisors (403481210).

742356742 is a wasteful number, since it uses less digits than its factorization.

742356742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863.

The product of its digits is 282240, while the sum is 40.

The square root of 742356742 is about 27246.2243622855. The cubic root of 742356742 is about 905.4633696403.

The spelling of 742356742 in words is "seven hundred forty-two million, three hundred fifty-six thousand, seven hundred forty-two".