109049040 has 120 divisors (see below), whose sum is σ = 368155008. Its totient is φ = 28926720.

The previous prime is 109049023. The next prime is 109049063. The reversal of 109049040 is 40940901.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×109049040³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109048995 and 109049013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223677 + ... + 224163.

Almost surely, 2^109049040 is an apocalyptic number.

109049040 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 109049040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184077504).

109049040 is an abundant number, since it is smaller than the sum of its proper divisors (259105968).

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

109049040 is a wasteful number, since it uses less digits than its factorization.

109049040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 109049040 is about 10442.6548348588. The cubic root of 109049040 is about 477.7572455972.

Adding to 109049040 its reverse (40940901), we get a palindrome (149989941).

The spelling of 109049040 in words is "one hundred nine million, forty-nine thousand, forty".