168398432 has 12 divisors (see below), whose sum is σ = 331534476. Its totient is φ = 84199200.

The previous prime is 168398429. The next prime is 168398443. The reversal of 168398432 is 234893861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631194 + ... + 2631257.

It is an arithmetic number, because the mean of its divisors is an integer number (27627873).

Almost surely, 2^168398432 is an apocalyptic number.

It is an amenable number.

168398432 is a deficient number, since it is larger than the sum of its proper divisors (163136044).

168398432 is an equidigital number, since it uses as much as digits as its factorization.

168398432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262461 (or 5262453 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 168398432 is about 12976.8421428327. The cubic root of 168398432 is about 552.2206986988.

The spelling of 168398432 in words is "one hundred sixty-eight million, three hundred ninety-eight thousand, four hundred thirty-two".