109389474 has 32 divisors (see below), whose sum is σ = 243432000. Its totient is φ = 36411552.

The previous prime is 109389473. The next prime is 109389491. The reversal of 109389474 is 474983901.

109389474 is a `hidden beast` number, since 10 + 93 + 89 + 474 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109389473) 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 15 ways as a sum of consecutive naturals, for example, 67182 + ... + 68790.

It is an arithmetic number, because the mean of its divisors is an integer number (7607250).

Almost surely, 2^109389474 is an apocalyptic number.

109389474 is an abundant number, since it is smaller than the sum of its proper divisors (134042526).

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

109389474 is a wasteful number, since it uses less digits than its factorization.

109389474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2873 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 109389474 is about 10458.9422983397. The cubic root of 109389474 is about 478.2538902033.

The spelling of 109389474 in words is "one hundred nine million, three hundred eighty-nine thousand, four hundred seventy-four".