1852038989 has 2 divisors, whose sum is σ = 1852038990. Its totient is φ = 1852038988.

The previous prime is 1852038971. The next prime is 1852039019. The reversal of 1852038989 is 9898302581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019716489 + 832322500 = 31933^2 + 28850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1852038989 - 2²⁴ = 1835261773 is a prime.

It is a super-2 number, since 2×1852038989² = 6860096833552284242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1852038989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1852031989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926019494 + 926019495.

It is an arithmetic number, because the mean of its divisors is an integer number (926019495).

Almost surely, 2^1852038989 is an apocalyptic number.

It is an amenable number.

1852038989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1852038989 is an equidigital number, since it uses as much as digits as its factorization.

1852038989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 1852038989 is about 43035.3225734396. The cubic root of 1852038989 is about 1228.0518633024.

The spelling of 1852038989 in words is "one billion, eight hundred fifty-two million, thirty-eight thousand, nine hundred eighty-nine".