163449368 has 8 divisors (see below), whose sum is σ = 306467580. Its totient is φ = 81724680.

The previous prime is 163449353. The next prime is 163449371. The reversal of 163449368 is 863944361.

It is a tau number, because it is divible by the number of its divisors (8).

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, 10215578 + ... + 10215593.

Almost surely, 2^163449368 is an apocalyptic number.

It is an amenable number.

163449368 is a deficient number, since it is larger than the sum of its proper divisors (143018212).

163449368 is a wasteful number, since it uses less digits than its factorization.

163449368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20431177 (or 20431173 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 163449368 is about 12784.7318313682. The cubic root of 163449368 is about 546.7570796984.

The spelling of 163449368 in words is "one hundred sixty-three million, four hundred forty-nine thousand, three hundred sixty-eight".