838380 has 48 divisors (see below), whose sum is σ = 2388960. Its totient is φ = 219648.

The previous prime is 838379. The next prime is 838391. The reversal of 838380 is 83838.

838380 = T₈₉ + T₉₀ + ... + T₁₇₈.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a plaindrome in base 13.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5262 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (49770).

2⁸³⁸³⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 838380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194480).

838380 is an abundant number, since it is smaller than the sum of its proper divisors (1550580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838380 is a wasteful number, since it uses less digits than its factorization.

838380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 838380 is about 915.6309300149. The cubic root of 838380 is about 94.2931845059.

The spelling of 838380 in words is "eight hundred thirty-eight thousand, three hundred eighty".