1838368969 has 4 divisors (see below), whose sum is σ = 1839366144. Its totient is φ = 1837371796.

The previous prime is 1838368963. The next prime is 1838368999. The reversal of 1838368969 is 9698638381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1838368969 - 2⁵ = 1838368937 is a prime.

It is a super-2 number, since 2×1838368969² = 6759200932364245922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1838368963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495817 + ... + 499510.

It is an arithmetic number, because the mean of its divisors is an integer number (459841536).

Almost surely, 2^1838368969 is an apocalyptic number.

It is an amenable number.

1838368969 is a deficient number, since it is larger than the sum of its proper divisors (997175).

1838368969 is an equidigital number, since it uses as much as digits as its factorization.

1838368969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997174.

The product of its digits is 13436928, while the sum is 61.

The square root of 1838368969 is about 42876.2051609048. The cubic root of 1838368969 is about 1225.0229553383.

The spelling of 1838368969 in words is "one billion, eight hundred thirty-eight million, three hundred sixty-eight thousand, nine hundred sixty-nine".