108269640 has 48 divisors (see below), whose sum is σ = 351877500. Its totient is φ = 28871808.

The previous prime is 108269633. The next prime is 108269641. The reversal of 108269640 is 46962801.

108269640 is a `hidden beast` number, since 1 + 0 + 8 + 2 + 6 + 9 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93199716 + 15069924 = 9654^2 + 3882^2 .

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 = 108269595 and 108269604.

It is not an unprimeable number, because it can be changed into a prime (108269641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150015 + ... + 150734.

Almost surely, 2^108269640 is an apocalyptic number.

108269640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108269640 is an abundant number, since it is smaller than the sum of its proper divisors (243607860).

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

108269640 is a wasteful number, since it uses less digits than its factorization.

108269640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300766 (or 300759 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 108269640 is about 10405.2698187024. The cubic root of 108269640 is about 476.6163073492.

The spelling of 108269640 in words is "one hundred eight million, two hundred sixty-nine thousand, six hundred forty".