105572720 has 80 divisors (see below), whose sum is σ = 283562208. Its totient is φ = 36126720.

The previous prime is 105572717. The next prime is 105572723. The reversal of 105572720 is 27275501.

It is an interprime number because it is at equal distance from previous prime (105572717) and next prime (105572723).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×105572720² = 22291198416396800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105572723) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11432 + ... + 18488.

Almost surely, 2^105572720 is an apocalyptic number.

105572720 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 105572720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141781104).

105572720 is an abundant number, since it is smaller than the sum of its proper divisors (177989488).

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

105572720 is a wasteful number, since it uses less digits than its factorization.

105572720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098 (or 7092 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 105572720 is about 10274.8586364971. The cubic root of 105572720 is about 472.6255948613.

The spelling of 105572720 in words is "one hundred five million, five hundred seventy-two thousand, seven hundred twenty".