105978844 has 12 divisors (see below), whose sum is σ = 185536624. Its totient is φ = 52968384.

The previous prime is 105978839. The next prime is 105978857. The reversal of 105978844 is 448879501.

It is a super-2 number, since 2×105978844² = 22463030751152672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105978794 and 105978803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13537 + ... + 19879.

Almost surely, 2^105978844 is an apocalyptic number.

It is an amenable number.

105978844 is a deficient number, since it is larger than the sum of its proper divisors (79557780).

105978844 is a wasteful number, since it uses less digits than its factorization.

105978844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524 (or 10522 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 105978844 is about 10294.6026635320. The cubic root of 105978844 is about 473.2308616810.

The spelling of 105978844 in words is "one hundred five million, nine hundred seventy-eight thousand, eight hundred forty-four".