168679420 has 48 divisors (see below), whose sum is σ = 435976128. Its totient is φ = 53383680.

The previous prime is 168679417. The next prime is 168679429. The reversal of 168679420 is 24976861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168679429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44521 + ... + 48160.

It is an arithmetic number, because the mean of its divisors is an integer number (9082836).

Almost surely, 2^168679420 is an apocalyptic number.

168679420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168679420 is an abundant number, since it is smaller than the sum of its proper divisors (267296708).

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

168679420 is a wasteful number, since it uses less digits than its factorization.

168679420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92710 (or 92708 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 168679420 is about 12987.6641471821. The cubic root of 168679420 is about 552.5276714027.

The spelling of 168679420 in words is "one hundred sixty-eight million, six hundred seventy-nine thousand, four hundred twenty".