168439056 has 40 divisors (see below), whose sum is σ = 442275264. Its totient is φ = 55224960.

The previous prime is 168439031. The next prime is 168439057. The reversal of 168439056 is 650934861.

It is a super-2 number, since 2×168439056² = 56743431172342272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168438999 and 168439017.

It is not an unprimeable number, because it can be changed into a prime (168439057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25836 + ... + 31691.

Almost surely, 2^168439056 is an apocalyptic number.

168439056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

168439056 is an abundant number, since it is smaller than the sum of its proper divisors (273836208).

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

168439056 is a wasteful number, since it uses less digits than its factorization.

168439056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57599 (or 57593 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 168439056 is about 12978.4072982782. The cubic root of 168439056 is about 552.2651005571.

The spelling of 168439056 in words is "one hundred sixty-eight million, four hundred thirty-nine thousand, fifty-six".