108889740 has 72 divisors (see below), whose sum is σ = 335265840. Its totient is φ = 28600704.

The previous prime is 108889733. The next prime is 108889747. The reversal of 108889740 is 47988801.

It is an interprime number because it is at equal distance from previous prime (108889733) and next prime (108889747).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (108889747) 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, 7546 + ... + 16574.

It is an arithmetic number, because the mean of its divisors is an integer number (4656470).

Almost surely, 2^108889740 is an apocalyptic number.

108889740 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 108889740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167632920).

108889740 is an abundant number, since it is smaller than the sum of its proper divisors (226376100).

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

108889740 is a wasteful number, since it uses less digits than its factorization.

108889740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 108889740 is about 10435.0246765401. The cubic root of 108889740 is about 477.5244945998.

The spelling of 108889740 in words is "one hundred eight million, eight hundred eighty-nine thousand, seven hundred forty".