105280724 has 12 divisors (see below), whose sum is σ = 185963904. Its totient is φ = 52148184.

The previous prime is 105280723. The next prime is 105280739. The reversal of 105280724 is 427082501.

It is a super-2 number, since 2×105280724² = 22168061691928352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105280723) 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 3 ways as a sum of consecutive naturals, for example, 122564 + ... + 123419.

It is an arithmetic number, because the mean of its divisors is an integer number (15496992).

Almost surely, 2^105280724 is an apocalyptic number.

It is an amenable number.

105280724 is a deficient number, since it is larger than the sum of its proper divisors (80683180).

105280724 is a wasteful number, since it uses less digits than its factorization.

105280724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246094 (or 246092 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 105280724 is about 10260.6395512171. The cubic root of 105280724 is about 472.1894587978.

The spelling of 105280724 in words is "one hundred five million, two hundred eighty thousand, seven hundred twenty-four".