168447648 has 48 divisors (see below), whose sum is σ = 448791840. Its totient is φ = 55309056.

The previous prime is 168447647. The next prime is 168447667. The reversal of 168447648 is 846744861.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×168447648² = 56749220233463808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 168447597 and 168447606.

It is not an unprimeable number, because it can be changed into a prime (168447647) 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, 6663 + ... + 19526.

It is an arithmetic number, because the mean of its divisors is an integer number (9349830).

Almost surely, 2^168447648 is an apocalyptic number.

It is an amenable number.

168447648 is an abundant number, since it is smaller than the sum of its proper divisors (280344192).

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

168447648 is a wasteful number, since it uses less digits than its factorization.

168447648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26269 (or 26261 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 168447648 is about 12978.7383053978. The cubic root of 168447648 is about 552.2744906618.

The spelling of 168447648 in words is "one hundred sixty-eight million, four hundred forty-seven thousand, six hundred forty-eight".