109127788 has 48 divisors (see below), whose sum is σ = 239904000. Its totient is φ = 42194880.

The previous prime is 109127747. The next prime is 109127827. The reversal of 109127788 is 887721901.

It is a happy number.

It is a super-2 number, since 2×109127788² = 23817748227545888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41538 + ... + 44086.

It is an arithmetic number, because the mean of its divisors is an integer number (4998000).

Almost surely, 2^109127788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109127788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119952000).

109127788 is an abundant number, since it is smaller than the sum of its proper divisors (130776212).

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

109127788 is a wasteful number, since it uses less digits than its factorization.

109127788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 43.

The square root of 109127788 is about 10446.4246515255. The cubic root of 109127788 is about 477.8722194814.

The spelling of 109127788 in words is "one hundred nine million, one hundred twenty-seven thousand, seven hundred eighty-eight".