109007640 has 128 divisors (see below), whose sum is σ = 415296000. Its totient is φ = 24914304.

The previous prime is 109007629. The next prime is 109007653. The reversal of 109007640 is 46700901.

109007640 is a `hidden beast` number, since 10 + 9 + 0 + 0 + 7 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 351 + ... + 14769.

It is an arithmetic number, because the mean of its divisors is an integer number (3244500).

Almost surely, 2^109007640 is an apocalyptic number.

109007640 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 109007640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207648000).

109007640 is an abundant number, since it is smaller than the sum of its proper divisors (306288360).

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

109007640 is a wasteful number, since it uses less digits than its factorization.

109007640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14446 (or 14436 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 109007640 is about 10440.6723921403. The cubic root of 109007640 is about 477.6967784486.

The spelling of 109007640 in words is "one hundred nine million, seven thousand, six hundred forty".