1838385701 has 2 divisors, whose sum is σ = 1838385702. Its totient is φ = 1838385700.

The previous prime is 1838385671. The next prime is 1838385709. The reversal of 1838385701 is 1075838381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1203396100 + 634989601 = 34690^2 + 25199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838385701 - 2¹⁰ = 1838384677 is a prime.

It is a super-2 number, since 2×1838385701² = 6759323971282522802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838385709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919192850 + 919192851.

It is an arithmetic number, because the mean of its divisors is an integer number (919192851).

Almost surely, 2^1838385701 is an apocalyptic number.

It is an amenable number.

1838385701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838385701 is an equidigital number, since it uses as much as digits as its factorization.

1838385701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 1838385701 is about 42876.4002803407. The cubic root of 1838385701 is about 1225.0266718613.

The spelling of 1838385701 in words is "one billion, eight hundred thirty-eight million, three hundred eighty-five thousand, seven hundred one".