109019928 has 32 divisors (see below), whose sum is σ = 273764160. Its totient is φ = 36178080.

The previous prime is 109019923. The next prime is 109019959. The reversal of 109019928 is 829910901.

It is a happy number.

It is a super-2 number, since 2×109019928² = 23770689402250368, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109019923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4558 + ... + 15453.

It is an arithmetic number, because the mean of its divisors is an integer number (8555130).

Almost surely, 2^109019928 is an apocalyptic number.

It is an amenable number.

109019928 is an abundant number, since it is smaller than the sum of its proper divisors (164744232).

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

109019928 is a wasteful number, since it uses less digits than its factorization.

109019928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20247 (or 20243 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 109019928 is about 10441.2608434039. The cubic root of 109019928 is about 477.7147273969.

The spelling of 109019928 in words is "one hundred nine million, nineteen thousand, nine hundred twenty-eight".