109045440 has 280 divisors, whose sum is σ = 444044832. Its totient is φ = 24883200.

The previous prime is 109045411. The next prime is 109045451. The reversal of 109045440 is 44540901.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 181140 + ... + 181740.

Almost surely, 2^109045440 is an apocalyptic number.

109045440 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 109045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222022416).

109045440 is an abundant number, since it is smaller than the sum of its proper divisors (334999392).

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

109045440 is an equidigital number, since it uses as much as digits as its factorization.

109045440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 109045440 is about 10442.4824634758. The cubic root of 109045440 is about 477.7519881919.

The spelling of 109045440 in words is "one hundred nine million, forty-five thousand, four hundred forty".