109977228 has 18 divisors (see below), whose sum is σ = 277998084. Its totient is φ = 36659064.

The previous prime is 109977221. The next prime is 109977247. The reversal of 109977228 is 822779901.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (109977221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1527426 + ... + 1527497.

It is an arithmetic number, because the mean of its divisors is an integer number (15444338).

Almost surely, 2^109977228 is an apocalyptic number.

109977228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

109977228 is an abundant number, since it is smaller than the sum of its proper divisors (168020856).

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

109977228 is a wasteful number, since it uses less digits than its factorization.

109977228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054933 (or 3054928 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 109977228 is about 10487.0028130062. The cubic root of 109977228 is about 479.1089197235.

It can be divided in two parts, 10997 and 7228, that added together give a square (18225 = 135²).

The spelling of 109977228 in words is "one hundred nine million, nine hundred seventy-seven thousand, two hundred twenty-eight".