109493640 has 64 divisors (see below), whose sum is σ = 364982400. Its totient is φ = 29198016.

The previous prime is 109493627. The next prime is 109493641. The reversal of 109493640 is 46394901.

109493640 is a `hidden beast` number, since 1 + 0 + 9 + 4 + 9 + 3 + 640 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 109493595 and 109493604.

It is not an unprimeable number, because it can be changed into a prime (109493641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49612 + ... + 51771.

It is an arithmetic number, because the mean of its divisors is an integer number (5702850).

Almost surely, 2^109493640 is an apocalyptic number.

109493640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109493640 is an abundant number, since it is smaller than the sum of its proper divisors (255488760).

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

109493640 is a wasteful number, since it uses less digits than its factorization.

109493640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101403 (or 101393 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 109493640 is about 10463.9208712604. The cubic root of 109493640 is about 478.4056476144.

The spelling of 109493640 in words is "one hundred nine million, four hundred ninety-three thousand, six hundred forty".