168442248 has 64 divisors (see below), whose sum is σ = 473235840. Its totient is φ = 49572864.

The previous prime is 168442247. The next prime is 168442279. The reversal of 168442248 is 842244861.

It is a super-2 number, since 2×168442248² = 56745581822587008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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

It is not an unprimeable number, because it can be changed into a prime (168442247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561 + ... + 18912.

It is an arithmetic number, because the mean of its divisors is an integer number (7394310).

Almost surely, 2^168442248 is an apocalyptic number.

It is an amenable number.

168442248 is an abundant number, since it is smaller than the sum of its proper divisors (304793592).

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

168442248 is a wasteful number, since it uses less digits than its factorization.

168442248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23518 (or 23514 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 168442248 is about 12978.5302711825. The cubic root of 168442248 is about 552.2685890970.

The spelling of 168442248 in words is "one hundred sixty-eight million, four hundred forty-two thousand, two hundred forty-eight".