108997240 has 128 divisors (see below), whose sum is σ = 282839040. Its totient is φ = 37440000.

The previous prime is 108997223. The next prime is 108997261. The reversal of 108997240 is 42799801.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 108997193 and 108997202.

It is a congruent number.

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, 831975 + ... + 832105.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680).

Almost surely, 2^108997240 is an apocalyptic number.

108997240 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 108997240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141419520).

108997240 is an abundant number, since it is smaller than the sum of its proper divisors (173841800).

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

108997240 is a wasteful number, since it uses less digits than its factorization.

108997240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 108997240 is about 10440.1743280464. The cubic root of 108997240 is about 477.6815862276.

The spelling of 108997240 in words is "one hundred eight million, nine hundred ninety-seven thousand, two hundred forty".