109389810 has 32 divisors (see below), whose sum is σ = 265249152. Its totient is φ = 28869120.

The previous prime is 109389773. The next prime is 109389823. The reversal of 109389810 is 18983901.

It is a happy number.

It is a super-2 number, since 2×109389810² = 23932261063672200, which contains 22 as substring.

It is a Curzon number.

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, 15886 + ... + 21705.

It is an arithmetic number, because the mean of its divisors is an integer number (8289036).

Almost surely, 2^109389810 is an apocalyptic number.

109389810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109389810 is an abundant number, since it is smaller than the sum of its proper divisors (155859342).

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

109389810 is a wasteful number, since it uses less digits than its factorization.

109389810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37698.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 109389810 is about 10458.9583611371. The cubic root of 109389810 is about 478.2543798700.

The spelling of 109389810 in words is "one hundred nine million, three hundred eighty-nine thousand, eight hundred ten".