168491026 has 8 divisors (see below), whose sum is σ = 275712624. Its totient is φ = 76586820.

The previous prime is 168490991. The next prime is 168491033. The reversal of 168491026 is 620194861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3829320 + ... + 3829363.

It is an arithmetic number, because the mean of its divisors is an integer number (34464078).

Almost surely, 2^168491026 is an apocalyptic number.

168491026 is a deficient number, since it is larger than the sum of its proper divisors (107221598).

168491026 is a wasteful number, since it uses less digits than its factorization.

168491026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658696.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 168491026 is about 12980.4093155802. The cubic root of 168491026 is about 552.3218931377.

It can be divided in two parts, 168 and 491026, that added together give a palindrome (491194).

The spelling of 168491026 in words is "one hundred sixty-eight million, four hundred ninety-one thousand, twenty-six".