109569240 has 256 divisors, whose sum is σ = 416793600. Its totient is φ = 25344000.

The previous prime is 109569227. The next prime is 109569323. The reversal of 109569240 is 42965901.

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 = 109569195 and 109569204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 273040 + ... + 273440.

It is an arithmetic number, because the mean of its divisors is an integer number (1628100).

Almost surely, 2^109569240 is an apocalyptic number.

109569240 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 109569240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208396800).

109569240 is an abundant number, since it is smaller than the sum of its proper divisors (307224360).

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

109569240 is a wasteful number, since it uses less digits than its factorization.

109569240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 109569240 is about 10467.5326605652. The cubic root of 109569240 is about 478.5157275125.

The spelling of 109569240 in words is "one hundred nine million, five hundred sixty-nine thousand, two hundred forty".