168247438 has 16 divisors (see below), whose sum is σ = 263761920. Its totient is φ = 80338456.

The previous prime is 168247421. The next prime is 168247439. The reversal of 168247438 is 834742861.

It is a junction number, because it is equal to n+sod(n) for n = 168247394 and 168247403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168247439) 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, 30531 + ... + 35617.

It is an arithmetic number, because the mean of its divisors is an integer number (16485120).

Almost surely, 2^168247438 is an apocalyptic number.

168247438 is a deficient number, since it is larger than the sum of its proper divisors (95514482).

168247438 is a wasteful number, since it uses less digits than its factorization.

168247438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831.

The product of its digits is 258048, while the sum is 43.

The square root of 168247438 is about 12971.0230128545. The cubic root of 168247438 is about 552.0556002771.

The spelling of 168247438 in words is "one hundred sixty-eight million, two hundred forty-seven thousand, four hundred thirty-eight".