109389378 has 16 divisors (see below), whose sum is σ = 250032960. Its totient is φ = 31254096.

The previous prime is 109389367. The next prime is 109389389. The reversal of 109389378 is 873983901.

It is an interprime number because it is at equal distance from previous prime (109389367) and next prime (109389389).

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, 1302213 + ... + 1302296.

It is an arithmetic number, because the mean of its divisors is an integer number (15627060).

Almost surely, 2^109389378 is an apocalyptic number.

109389378 is an abundant number, since it is smaller than the sum of its proper divisors (140643582).

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

109389378 is a wasteful number, since it uses less digits than its factorization.

109389378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604521.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 109389378 is about 10458.9377089645. The cubic root of 109389378 is about 478.2537502984.

The spelling of 109389378 in words is "one hundred nine million, three hundred eighty-nine thousand, three hundred seventy-eight".