109839000 has 256 divisors, whose sum is σ = 377395200. Its totient is φ = 26496000.

The previous prime is 109838999. The next prime is 109839001. The reversal of 109839000 is 938901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (109838999) and next prime (109839001).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109839001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2336977 + ... + 2337023.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^109839000 is an apocalyptic number.

109839000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109839000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188697600).

109839000 is an abundant number, since it is smaller than the sum of its proper divisors (267556200).

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

109839000 is a wasteful number, since it uses less digits than its factorization.

109839000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 109839000 is about 10480.4102973118. The cubic root of 109839000 is about 478.9081083541.

The spelling of 109839000 in words is "one hundred nine million, eight hundred thirty-nine thousand".