999693242 has 8 divisors (see below), whose sum is σ = 1536114132. Its totient is φ = 487655200.

The previous prime is 999693241. The next prime is 999693271. The reversal of 999693242 is 242396999.

It can be written as a sum of positive squares in 2 ways, for example, as 964040401 + 35652841 = 31049^2 + 5971^2 .

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

It is not an unprimeable number, because it can be changed into a prime (999693241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095609 + ... + 6095772.

Almost surely, 2^999693242 is an apocalyptic number.

999693242 is a deficient number, since it is larger than the sum of its proper divisors (536420890).

999693242 is a wasteful number, since it uses less digits than its factorization.

999693242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191424.

The product of its digits is 1889568, while the sum is 53.

The square root of 999693242 is about 31617.9259598096. The cubic root of 999693242 is about 999.8977368759.

The spelling of 999693242 in words is "nine hundred ninety-nine million, six hundred ninety-three thousand, two hundred forty-two".