105398836 has 12 divisors (see below), whose sum is σ = 184588740. Its totient is φ = 52659200.

The previous prime is 105398831. The next prime is 105398837. The reversal of 105398836 is 638893501.

It can be written as a sum of positive squares in 2 ways, for example, as 7507600 + 97891236 = 2740^2 + 9894^2 .

It is a super-2 number, since 2×105398836² = 22217829260309792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105398792 and 105398801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105398831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3715 + ... + 14986.

It is an arithmetic number, because the mean of its divisors is an integer number (15382395).

Almost surely, 2^105398836 is an apocalyptic number.

It is an amenable number.

105398836 is a deficient number, since it is larger than the sum of its proper divisors (79189904).

105398836 is a wasteful number, since it uses less digits than its factorization.

105398836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20114 (or 20112 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 105398836 is about 10266.3935245051. The cubic root of 105398836 is about 472.3659722691.

The spelling of 105398836 in words is "one hundred five million, three hundred ninety-eight thousand, eight hundred thirty-six".