106197840 has 240 divisors, whose sum is σ = 429436800. Its totient is φ = 22975488.

The previous prime is 106197823. The next prime is 106197851. The reversal of 106197840 is 48791601.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×106197840² = 22555962441331200, which contains 22 as substring.

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 = 106197795 and 106197804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95206 + ... + 96314.

It is an arithmetic number, because the mean of its divisors is an integer number (1789320).

Almost surely, 2^106197840 is an apocalyptic number.

106197840 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 106197840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214718400).

106197840 is an abundant number, since it is smaller than the sum of its proper divisors (323238960).

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

106197840 is a wasteful number, since it uses less digits than its factorization.

106197840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1145 counting only the distinct ones).

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

The square root of 106197840 is about 10305.2336218060. The cubic root of 106197840 is about 473.5566007909.

The spelling of 106197840 in words is "one hundred six million, one hundred ninety-seven thousand, eight hundred forty".