109420380 has 144 divisors (see below), whose sum is σ = 346329984. Its totient is φ = 27941760.

The previous prime is 109420379. The next prime is 109420387. The reversal of 109420380 is 83024901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109420387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 518475 + ... + 518685.

Almost surely, 2^109420380 is an apocalyptic number.

109420380 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 109420380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173164992).

109420380 is an abundant number, since it is smaller than the sum of its proper divisors (236909604).

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

109420380 is a wasteful number, since it uses less digits than its factorization.

109420380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 109420380 is about 10460.4196856532. The cubic root of 109420380 is about 478.2989265991.

The spelling of 109420380 in words is "one hundred nine million, four hundred twenty thousand, three hundred eighty".