1699368442 has 4 divisors (see below), whose sum is σ = 2549052666. Its totient is φ = 849684220.

The previous prime is 1699368431. The next prime is 1699368497. The reversal of 1699368442 is 2448639961.

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., 933241401 + 766127041 = 30549^2 + 27679^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1699368442.

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 as a sum of consecutive naturals, namely, 424842109 + ... + 424842112.

Almost surely, 2^1699368442 is an apocalyptic number.

1699368442 is a deficient number, since it is larger than the sum of its proper divisors (849684224).

1699368442 is an equidigital number, since it uses as much as digits as its factorization.

1699368442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849684223.

The product of its digits is 2239488, while the sum is 52.

The square root of 1699368442 is about 41223.3967790137. The cubic root of 1699368442 is about 1193.3353787473.

The spelling of 1699368442 in words is "one billion, six hundred ninety-nine million, three hundred sixty-eight thousand, four hundred forty-two".