109209744 has 60 divisors (see below), whose sum is σ = 349301056. Its totient is φ = 31202496.

The previous prime is 109209721. The next prime is 109209781. The reversal of 109209744 is 447902901.

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 = 109209699 and 109209708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53164 + ... + 55179.

Almost surely, 2^109209744 is an apocalyptic number.

109209744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

109209744 is an abundant number, since it is smaller than the sum of its proper divisors (240091312).

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

109209744 is a wasteful number, since it uses less digits than its factorization.

109209744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108364 (or 108355 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 109209744 is about 10450.3465971230. The cubic root of 109209744 is about 477.9918183972.

The spelling of 109209744 in words is "one hundred nine million, two hundred nine thousand, seven hundred forty-four".