1869788342 has 4 divisors (see below), whose sum is σ = 2804682516. Its totient is φ = 934894170.

The previous prime is 1869788341. The next prime is 1869788359. The reversal of 1869788342 is 2438879681.

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

It is a super-2 number, since 2×1869788342² = 6992216887758217928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869788341) 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, 467447084 + ... + 467447087.

It is an arithmetic number, because the mean of its divisors is an integer number (701170629).

Almost surely, 2^1869788342 is an apocalyptic number.

1869788342 is a deficient number, since it is larger than the sum of its proper divisors (934894174).

1869788342 is an equidigital number, since it uses as much as digits as its factorization.

1869788342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934894173.

The product of its digits is 4644864, while the sum is 56.

The square root of 1869788342 is about 43241.0492703403. The cubic root of 1869788342 is about 1231.9624833090.

The spelling of 1869788342 in words is "one billion, eight hundred sixty-nine million, seven hundred eighty-eight thousand, three hundred forty-two".