742438999202 has 16 divisors (see below), whose sum is σ = 1179256096440. Its totient is φ = 349356903168.

The previous prime is 742438999199. The next prime is 742438999217. The reversal of 742438999202 is 202999834247.

It is a happy number.

It is a Cunningham number, because it is equal to 861649²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 578024157841 + 164414841361 = 760279^2 + 405481^2 .

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, 352673 + ... + 1268564.

Almost surely, 2^742438999202 is an apocalyptic number.

742438999202 is a deficient number, since it is larger than the sum of its proper divisors (436817097238).

742438999202 is a wasteful number, since it uses less digits than its factorization.

742438999202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634725.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 742438999202 in words is "seven hundred forty-two billion, four hundred thirty-eight million, nine hundred ninety-nine thousand, two hundred two".