109749836 has 48 divisors (see below), whose sum is σ = 230490624. Its totient is φ = 44706816.

The previous prime is 109749823. The next prime is 109749847. The reversal of 109749836 is 638947901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123851 + ... + 124733.

It is an arithmetic number, because the mean of its divisors is an integer number (4801888).

Almost surely, 2^109749836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109749836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115245312).

109749836 is an abundant number, since it is smaller than the sum of its proper divisors (120740788).

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

109749836 is a wasteful number, since it uses less digits than its factorization.

109749836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 109749836 is about 10476.1555925826. The cubic root of 109749836 is about 478.7784855354.

The spelling of 109749836 in words is "one hundred nine million, seven hundred forty-nine thousand, eight hundred thirty-six".