168490342 has 4 divisors (see below), whose sum is σ = 252735516. Its totient is φ = 84245170.

The previous prime is 168490337. The next prime is 168490367. The reversal of 168490342 is 243094861.

168490342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42122584 + ... + 42122587.

It is an arithmetic number, because the mean of its divisors is an integer number (63183879).

Almost surely, 2^168490342 is an apocalyptic number.

168490342 is a deficient number, since it is larger than the sum of its proper divisors (84245174).

168490342 is an equidigital number, since it uses as much as digits as its factorization.

168490342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84245173.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 168490342 is about 12980.3829681562. The cubic root of 168490342 is about 552.3211457414.

The spelling of 168490342 in words is "one hundred sixty-eight million, four hundred ninety thousand, three hundred forty-two".