109445700 has 288 divisors, whose sum is σ = 412195840. Its totient is φ = 21772800.

The previous prime is 109445683. The next prime is 109445723. The reversal of 109445700 is 7544901.

It is a happy number.

It is a super-2 number, since 2×109445700² = 23956722496980000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 518595 + ... + 518805.

Almost surely, 2^109445700 is an apocalyptic number.

109445700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109445700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206097920).

109445700 is an abundant number, since it is smaller than the sum of its proper divisors (302750140).

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

109445700 is a wasteful number, since it uses less digits than its factorization.

109445700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 109445700 is about 10461.6298921344. The cubic root of 109445700 is about 478.3358167251.

The spelling of 109445700 in words is "one hundred nine million, four hundred forty-five thousand, seven hundred".