168523044 has 48 divisors (see below), whose sum is σ = 401909760. Its totient is φ = 54946080.

The previous prime is 168523039. The next prime is 168523067. The reversal of 168523044 is 440325861.

It is a junction number, because it is equal to n+sod(n) for n = 168522996 and 168523014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117717 + ... + 119139.

It is an arithmetic number, because the mean of its divisors is an integer number (8373120).

Almost surely, 2^168523044 is an apocalyptic number.

It is an amenable number.

168523044 is an abundant number, since it is smaller than the sum of its proper divisors (233386716).

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

168523044 is a wasteful number, since it uses less digits than its factorization.

168523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 168523044 is about 12981.6425771163. The cubic root of 168523044 is about 552.3568764496.

The spelling of 168523044 in words is "one hundred sixty-eight million, five hundred twenty-three thousand, forty-four".