105728424 has 32 divisors (see below), whose sum is σ = 275814720. Its totient is φ = 33710336.

The previous prime is 105728417. The next prime is 105728429. The reversal of 105728424 is 424827501.

It is a super-2 number, since 2×105728424² = 22356999283047552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105728429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95217 + ... + 96320.

It is an arithmetic number, because the mean of its divisors is an integer number (8619210).

Almost surely, 2^105728424 is an apocalyptic number.

It is an amenable number.

105728424 is an abundant number, since it is smaller than the sum of its proper divisors (170086296).

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

105728424 is a wasteful number, since it uses less digits than its factorization.

105728424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191569 (or 191565 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 105728424 is about 10282.4327860677. The cubic root of 105728424 is about 472.8578314571.

The spelling of 105728424 in words is "one hundred five million, seven hundred twenty-eight thousand, four hundred twenty-four".