105732720 has 240 divisors, whose sum is σ = 383011200. Its totient is φ = 26058240.

The previous prime is 105732719. The next prime is 105732761. The reversal of 105732720 is 27237501.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×105732720² = 22358816157196800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 807055 + ... + 807185.

It is an arithmetic number, because the mean of its divisors is an integer number (1595880).

Almost surely, 2^105732720 is an apocalyptic number.

105732720 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 105732720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191505600).

105732720 is an abundant number, since it is smaller than the sum of its proper divisors (277278480).

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

105732720 is a wasteful number, since it uses less digits than its factorization.

105732720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 105732720 is about 10282.6416839254. The cubic root of 105732720 is about 472.8642358204.

The spelling of 105732720 in words is "one hundred five million, seven hundred thirty-two thousand, seven hundred twenty".