108256644 has 18 divisors (see below), whose sum is σ = 273648830. Its totient is φ = 36085536.

The previous prime is 108256633. The next prime is 108256649. The reversal of 108256644 is 446652801.

108256644 is a `hidden beast` number, since 1 + 0 + 8 + 2 + 5 + 6 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95296644 + 12960000 = 9762^2 + 3600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3007129 = 108256644 / (1 + 0 + 8 + 2 + 5 + 6 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 108256599 and 108256608.

It is not an unprimeable number, because it can be changed into a prime (108256649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1503529 + ... + 1503600.

Almost surely, 2^108256644 is an apocalyptic number.

It is an amenable number.

108256644 is an abundant number, since it is smaller than the sum of its proper divisors (165392186).

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

108256644 is a wasteful number, since it uses less digits than its factorization.

108256644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007139 (or 3007134 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 108256644 is about 10404.6453087071. The cubic root of 108256644 is about 476.5972365879.

It can be divided in two parts, 108256 and 644, that added together give a square (108900 = 330²).

The spelling of 108256644 in words is "one hundred eight million, two hundred fifty-six thousand, six hundred forty-four".