109773720 has 240 divisors, whose sum is σ = 419477760. Its totient is φ = 24893568.

The previous prime is 109773707. The next prime is 109773731. The reversal of 109773720 is 27377901.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 864297 + ... + 864423.

It is an arithmetic number, because the mean of its divisors is an integer number (1747824).

Almost surely, 2^109773720 is an apocalyptic number.

109773720 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 109773720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209738880).

109773720 is an abundant number, since it is smaller than the sum of its proper divisors (309704040).

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

109773720 is a wasteful number, since it uses less digits than its factorization.

109773720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 109773720 is about 10477.2954525488. The cubic root of 109773720 is about 478.8132139577.

The spelling of 109773720 in words is "one hundred nine million, seven hundred seventy-three thousand, seven hundred twenty".