9994228429 has 4 divisors (see below), whose sum is σ = 10237990140. Its totient is φ = 9750466720.

The previous prime is 9994228427. The next prime is 9994228441. The reversal of 9994228429 is 9248224999.

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

It can be written as a sum of positive squares in 2 ways, for example, as 502208100 + 9492020329 = 22410^2 + 97427^2 .

It is a cyclic number.

It is not a de Polignac number, because 9994228429 - 2¹ = 9994228427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9994228427) 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 in 3 ways as a sum of consecutive naturals, for example, 121880794 + ... + 121880875.

It is an arithmetic number, because the mean of its divisors is an integer number (2559497535).

Almost surely, 2^9994228429 is an apocalyptic number.

It is an amenable number.

9994228429 is a deficient number, since it is larger than the sum of its proper divisors (243761711).

9994228429 is a wasteful number, since it uses less digits than its factorization.

9994228429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243761710.

The product of its digits is 6718464, while the sum is 58.

The square root of 9994228429 is about 99971.1379799190. The cubic root of 9994228429 is about 2154.0201278399.

The spelling of 9994228429 in words is "nine billion, nine hundred ninety-four million, two hundred twenty-eight thousand, four hundred twenty-nine".