106831940 has 48 divisors (see below), whose sum is σ = 237081600. Its totient is φ = 40371072.

The previous prime is 106831939. The next prime is 106831943. The reversal of 106831940 is 49138601.

It is a happy number.

It is a super-2 number, since 2×106831940² = 22826126808327200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106831897 and 106831906.

It is not an unprimeable number, because it can be changed into a prime (106831943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25301 + ... + 29219.

It is an arithmetic number, because the mean of its divisors is an integer number (4939200).

Almost surely, 2^106831940 is an apocalyptic number.

106831940 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 106831940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118540800).

106831940 is an abundant number, since it is smaller than the sum of its proper divisors (130249660).

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

106831940 is a wasteful number, since it uses less digits than its factorization.

106831940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 106831940 is about 10335.9537537665. The cubic root of 106831940 is about 474.4972557056.

The spelling of 106831940 in words is "one hundred six million, eight hundred thirty-one thousand, nine hundred forty".