168445402 has 8 divisors (see below), whose sum is σ = 252770976. Its totient is φ = 84188412.

The previous prime is 168445373. The next prime is 168445411. The reversal of 168445402 is 204544861.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10488 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (31596372).

Almost surely, 2^168445402 is an apocalyptic number.

168445402 is a deficient number, since it is larger than the sum of its proper divisors (84325574).

168445402 is a wasteful number, since it uses less digits than its factorization.

168445402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34292.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 168445402 is about 12978.6517789792. The cubic root of 168445402 is about 552.2720360633.

The spelling of 168445402 in words is "one hundred sixty-eight million, four hundred forty-five thousand, four hundred two".