9634210042 has 4 divisors (see below), whose sum is σ = 14451315066. Its totient is φ = 4817105020.

The previous prime is 9634209953. The next prime is 9634210049. The reversal of 9634210042 is 2400124369.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7712176761 + 1922033281 = 87819^2 + 43841^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9634209986 and 9634210013.

It is not an unprimeable number, because it can be changed into a prime (9634210049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2408552509 + ... + 2408552512.

Almost surely, 2^9634210042 is an apocalyptic number.

9634210042 is a deficient number, since it is larger than the sum of its proper divisors (4817105024).

9634210042 is a wasteful number, since it uses less digits than its factorization.

9634210042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817105023.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 9634210042 is about 98154.0118487268. The cubic root of 9634210042 is about 2127.8387006571.

The spelling of 9634210042 in words is "nine billion, six hundred thirty-four million, two hundred ten thousand, forty-two".