168258426 has 16 divisors (see below), whose sum is σ = 384590784. Its totient is φ = 48073824.

The previous prime is 168258407. The next prime is 168258439. The reversal of 168258426 is 624852861.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4006153 = 168258426 / (1 + 6 + 8 + 2 + 5 + 8 + 4 + 2 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2003035 + ... + 2003118.

It is an arithmetic number, because the mean of its divisors is an integer number (24036924).

Almost surely, 2^168258426 is an apocalyptic number.

168258426 is an abundant number, since it is smaller than the sum of its proper divisors (216332358).

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

168258426 is a wasteful number, since it uses less digits than its factorization.

168258426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006165.

The product of its digits is 184320, while the sum is 42.

The square root of 168258426 is about 12971.4465654375. The cubic root of 168258426 is about 552.0676180032.

The spelling of 168258426 in words is "one hundred sixty-eight million, two hundred fifty-eight thousand, four hundred twenty-six".