105643450 has 48 divisors (see below), whose sum is σ = 215343360. Its totient is φ = 38240000.

The previous prime is 105643427. The next prime is 105643463. The reversal of 105643450 is 54346501.

It is a super-2 number, since 2×105643450² = 22321077055805000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220311 + ... + 220789.

It is an arithmetic number, because the mean of its divisors is an integer number (4486320).

Almost surely, 2^105643450 is an apocalyptic number.

105643450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105643450 is an abundant number, since it is smaller than the sum of its proper divisors (109699910).

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

105643450 is a wasteful number, since it uses less digits than its factorization.

105643450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 105643450 is about 10278.2999567049. The cubic root of 105643450 is about 472.7311187938.

Adding to 105643450 its reverse (54346501), we get a palindrome (159989951).

The spelling of 105643450 in words is "one hundred five million, six hundred forty-three thousand, four hundred fifty".