1865371052 has 6 divisors (see below), whose sum is σ = 3264399348. Its totient is φ = 932685524.

The previous prime is 1865371051. The next prime is 1865371061. The reversal of 1865371052 is 2501735681.

It is a junction number, because it is equal to n+sod(n) for n = 1865370997 and 1865371015.

It is not an unprimeable number, because it can be changed into a prime (1865371051) 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, 233171378 + ... + 233171385.

It is an arithmetic number, because the mean of its divisors is an integer number (544066558).

Almost surely, 2^1865371052 is an apocalyptic number.

It is an amenable number.

1865371052 is a deficient number, since it is larger than the sum of its proper divisors (1399028296).

1865371052 is a wasteful number, since it uses less digits than its factorization.

1865371052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466342767 (or 466342765 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1865371052 is about 43189.9415605069. The cubic root of 1865371052 is about 1230.9915665282.

The spelling of 1865371052 in words is "one billion, eight hundred sixty-five million, three hundred seventy-one thousand, fifty-two".