109036728 has 24 divisors (see below), whose sum is σ = 295308000. Its totient is φ = 36345552.

The previous prime is 109036709. The next prime is 109036783. The reversal of 109036728 is 827630901.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 109036692 and 109036701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757128 + ... + 757271.

It is an arithmetic number, because the mean of its divisors is an integer number (12304500).

Almost surely, 2^109036728 is an apocalyptic number.

109036728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

109036728 is an abundant number, since it is smaller than the sum of its proper divisors (186271272).

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

109036728 is a wasteful number, since it uses less digits than its factorization.

109036728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514411 (or 1514404 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 109036728 is about 10442.0653129541. The cubic root of 109036728 is about 477.7392647922.

The spelling of 109036728 in words is "one hundred nine million, thirty-six thousand, seven hundred twenty-eight".