1898322052 has 18 divisors (see below), whose sum is σ = 3651525374. Its totient is φ = 862873440.

The previous prime is 1898322031. The next prime is 1898322059. The reversal of 1898322052 is 2502238981.

It can be written as a sum of positive squares in only one way, i.e., 1836636736 + 61685316 = 42856^2 + 7854^2 .

It is a super-2 number, since 2×1898322052² = 7207253226218981408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1898321996 and 1898322014.

It is not an unprimeable number, because it can be changed into a prime (1898322059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1960593 + ... + 1961560.

Almost surely, 2^1898322052 is an apocalyptic number.

It is an amenable number.

1898322052 is a deficient number, since it is larger than the sum of its proper divisors (1753203322).

1898322052 is a wasteful number, since it uses less digits than its factorization.

1898322052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922179 (or 3922166 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1898322052 is about 43569.7378004504. The cubic root of 1898322052 is about 1238.1976181791.

The spelling of 1898322052 in words is "one billion, eight hundred ninety-eight million, three hundred twenty-two thousand, fifty-two".