109149444 has 120 divisors (see below), whose sum is σ = 302805888. Its totient is φ = 34214400.

The previous prime is 109149431. The next prime is 109149449. The reversal of 109149444 is 444941901.

It is a super-2 number, since 2×109149444² = 23827202251018272, which contains 22 as substring.

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 = 109149399 and 109149408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109149449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 722769 + ... + 722919.

Almost surely, 2^109149444 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 109149444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151402944).

109149444 is an abundant number, since it is smaller than the sum of its proper divisors (193656444).

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

109149444 is a wasteful number, since it uses less digits than its factorization.

109149444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 276 counting only the distinct ones).

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

The square root of 109149444 is about 10447.4611269916. The cubic root of 109149444 is about 477.9038280401.

The spelling of 109149444 in words is "one hundred nine million, one hundred forty-nine thousand, four hundred forty-four".