183828381 has 32 divisors (see below), whose sum is σ = 273518208. Its totient is φ = 108887040.

The previous prime is 183828373. The next prime is 183828389.

It is a happy number.

183828381 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (183828373) and next prime (183828389).

It is not a de Polignac number, because 183828381 - 2³ = 183828373 is a prime.

It is a super-2 number, since 2×183828381² = 67585747322162322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183828389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329755 + ... + 330311.

It is an arithmetic number, because the mean of its divisors is an integer number (8547444).

Almost surely, 2^183828381 is an apocalyptic number.

183828381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

183828381 is a deficient number, since it is larger than the sum of its proper divisors (89689827).

183828381 is a wasteful number, since it uses less digits than its factorization.

183828381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its digits is 73728, while the sum is 42.

The square root of 183828381 is about 13558.3325302192. The cubic root of 183828381 is about 568.5965070478.

The spelling of 183828381 in words is "one hundred eighty-three million, eight hundred twenty-eight thousand, three hundred eighty-one".