168467990 has 8 divisors (see below), whose sum is σ = 303242400. Its totient is φ = 67387192.

The previous prime is 168467953. The next prime is 168468029. The reversal of 168467990 is 99764861.

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

It is a congruent number.

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, 8423390 + ... + 8423409.

It is an arithmetic number, because the mean of its divisors is an integer number (37905300).

Almost surely, 2^168467990 is an apocalyptic number.

168467990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168467990 is a deficient number, since it is larger than the sum of its proper divisors (134774410).

168467990 is a wasteful number, since it uses less digits than its factorization.

168467990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846806.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 168467990 is about 12979.5219480534. The cubic root of 168467990 is about 552.2967209424.

The spelling of 168467990 in words is "one hundred sixty-eight million, four hundred sixty-seven thousand, nine hundred ninety".