109028766 has 64 divisors (see below), whose sum is σ = 273000960. Its totient is φ = 28200960.

The previous prime is 109028749. The next prime is 109028839. The reversal of 109028766 is 667820901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188670 + ... + 189246.

It is an arithmetic number, because the mean of its divisors is an integer number (4265640).

Almost surely, 2^109028766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109028766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136500480).

109028766 is an abundant number, since it is smaller than the sum of its proper divisors (163972194).

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

109028766 is a wasteful number, since it uses less digits than its factorization.

109028766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 109028766 is about 10441.6840595758. The cubic root of 109028766 is about 477.7276361337.

The spelling of 109028766 in words is "one hundred nine million, twenty-eight thousand, seven hundred sixty-six".