109116438 has 32 divisors (see below), whose sum is σ = 232523136. Its totient is φ = 34017408.

The previous prime is 109116437. The next prime is 109116451. The reversal of 109116438 is 834611901.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109116399 and 109116408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109116437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13345 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (7266348).

Almost surely, 2^109116438 is an apocalyptic number.

109116438 is an abundant number, since it is smaller than the sum of its proper divisors (123406698).

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

109116438 is a wasteful number, since it uses less digits than its factorization.

109116438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6748.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 109116438 is about 10445.8813893324. The cubic root of 109116438 is about 477.8556516336.

The spelling of 109116438 in words is "one hundred nine million, one hundred sixteen thousand, four hundred thirty-eight".