1992243850 has 12 divisors (see below), whose sum is σ = 3705573654. Its totient is φ = 796897520.

The previous prime is 1992243811. The next prime is 1992243857. The reversal of 1992243850 is 583422991.

It can be written as a sum of positive squares in 3 ways, for example, as 1485408681 + 506835169 = 38541^2 + 22513^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1992243797 and 1992243806.

It is not an unprimeable number, because it can be changed into a prime (1992243857) 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 5 ways as a sum of consecutive naturals, for example, 19922389 + ... + 19922488.

Almost surely, 2^1992243850 is an apocalyptic number.

1992243850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992243850 is a deficient number, since it is larger than the sum of its proper divisors (1713329804).

1992243850 is a wasteful number, since it uses less digits than its factorization.

1992243850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39844889 (or 39844884 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1992243850 is about 44634.5589201910. The cubic root of 1992243850 is about 1258.2902505119.

The spelling of 1992243850 in words is "one billion, nine hundred ninety-two million, two hundred forty-three thousand, eight hundred fifty".