1853722242 has 12 divisors (see below), whose sum is σ = 4016398230. Its totient is φ = 617907408.

The previous prime is 1853722231. The next prime is 1853722243. The reversal of 1853722242 is 2422273581.

It can be written as a sum of positive squares in only one way, i.e., 1729644921 + 124077321 = 41589^2 + 11139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1853722197 and 1853722206.

It is not an unprimeable number, because it can be changed into a prime (1853722243) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 51492267 + ... + 51492302.

Almost surely, 2^1853722242 is an apocalyptic number.

1853722242 is an abundant number, since it is smaller than the sum of its proper divisors (2162675988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1853722242 is a wasteful number, since it uses less digits than its factorization.

1853722242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102984577 (or 102984574 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 1853722242 is about 43054.8747762666. The cubic root of 1853722242 is about 1228.4237950070.

The spelling of 1853722242 in words is "one billion, eight hundred fifty-three million, seven hundred twenty-two thousand, two hundred forty-two".