109671840 has 192 divisors, whose sum is σ = 391910400. Its totient is φ = 28634112.

The previous prime is 109671827. The next prime is 109671851. The reversal of 109671840 is 48176901.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 109671795 and 109671804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228721 + ... + 229199.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^109671840 is an apocalyptic number.

109671840 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 109671840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195955200).

109671840 is an abundant number, since it is smaller than the sum of its proper divisors (282238560).

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

109671840 is a wasteful number, since it uses less digits than its factorization.

109671840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 109671840 is about 10472.4323822119. The cubic root of 109671840 is about 478.6650406996.

The spelling of 109671840 in words is "one hundred nine million, six hundred seventy-one thousand, eight hundred forty".