109579140 has 72 divisors (see below), whose sum is σ = 362613888. Its totient is φ = 26564160.

The previous prime is 109579111. The next prime is 109579147. The reversal of 109579140 is 41975901.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 109579095 and 109579104.

It is not an unprimeable number, because it can be changed into a prime (109579147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25692 + ... + 29651.

It is an arithmetic number, because the mean of its divisors is an integer number (5036304).

Almost surely, 2^109579140 is an apocalyptic number.

109579140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109579140 is an abundant number, since it is smaller than the sum of its proper divisors (253034748).

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

109579140 is a wasteful number, since it uses less digits than its factorization.

109579140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55369 (or 55364 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 109579140 is about 10468.0055406940. The cubic root of 109579140 is about 478.5301389873.

The spelling of 109579140 in words is "one hundred nine million, five hundred seventy-nine thousand, one hundred forty".