105801900 has 72 divisors (see below), whose sum is σ = 308928144. Its totient is φ = 27955200.

The previous prime is 105801869. The next prime is 105801901. The reversal of 105801900 is 9108501.

It is a super-2 number, since 2×105801900² = 22388084087220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105801901) 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 23 ways as a sum of consecutive naturals, for example, 32340 + ... + 35460.

Almost surely, 2^105801900 is an apocalyptic number.

105801900 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 105801900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154464072).

105801900 is an abundant number, since it is smaller than the sum of its proper divisors (203126244).

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

105801900 is a wasteful number, since it uses less digits than its factorization.

105801900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251 (or 3244 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 105801900 is about 10286.0050554139. The cubic root of 105801900 is about 472.9673436565.

The spelling of 105801900 in words is "one hundred five million, eight hundred one thousand, nine hundred".