168431448 has 16 divisors (see below), whose sum is σ = 421078680. Its totient is φ = 56143808.

The previous prime is 168431429. The next prime is 168431453. The reversal of 168431448 is 844134861.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3508965 + ... + 3509012.

Almost surely, 2^168431448 is an apocalyptic number.

It is an amenable number.

168431448 is an abundant number, since it is smaller than the sum of its proper divisors (252647232).

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

168431448 is a wasteful number, since it uses less digits than its factorization.

168431448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017986 (or 7017982 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 168431448 is about 12978.1141927477. The cubic root of 168431448 is about 552.2567855890.

The spelling of 168431448 in words is "one hundred sixty-eight million, four hundred thirty-one thousand, four hundred forty-eight".