168266380 has 24 divisors (see below), whose sum is σ = 362911248. Its totient is φ = 65487168.

The previous prime is 168266369. The next prime is 168266401. The reversal of 168266380 is 83662861.

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 7 ways as a sum of consecutive naturals, for example, 112954 + ... + 114433.

It is an arithmetic number, because the mean of its divisors is an integer number (15121302).

Almost surely, 2^168266380 is an apocalyptic number.

168266380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168266380 is an abundant number, since it is smaller than the sum of its proper divisors (194644868).

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

168266380 is a wasteful number, since it uses less digits than its factorization.

168266380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227433 (or 227431 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 168266380 is about 12971.7531583052. The cubic root of 168266380 is about 552.0763170755.

The spelling of 168266380 in words is "one hundred sixty-eight million, two hundred sixty-six thousand, three hundred eighty".