109404020 has 24 divisors (see below), whose sum is σ = 250635168. Its totient is φ = 39783200.

The previous prime is 109404011. The next prime is 109404041. The reversal of 109404020 is 20404901.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 109403983 and 109404001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248426 + ... + 248865.

It is an arithmetic number, because the mean of its divisors is an integer number (10443132).

Almost surely, 2^109404020 is an apocalyptic number.

109404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109404020 is an abundant number, since it is smaller than the sum of its proper divisors (141231148).

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

109404020 is a wasteful number, since it uses less digits than its factorization.

109404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497311 (or 497309 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 109404020 is about 10459.6376610282. The cubic root of 109404020 is about 478.2750877723.

Adding to 109404020 its reverse (20404901), we get a palindrome (129808921).

The spelling of 109404020 in words is "one hundred nine million, four hundred four thousand, twenty".