168006424 has 8 divisors (see below), whose sum is σ = 315012060. Its totient is φ = 84003208.

The previous prime is 168006413. The next prime is 168006431. The reversal of 168006424 is 424600861.

It is a tau number, because it is divible by the number of its divisors (8).

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, 10500394 + ... + 10500409.

Almost surely, 2^168006424 is an apocalyptic number.

It is an amenable number.

168006424 is a deficient number, since it is larger than the sum of its proper divisors (147005636).

168006424 is a wasteful number, since it uses less digits than its factorization.

168006424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21000809 (or 21000805 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 168006424 is about 12961.7292056268. The cubic root of 168006424 is about 551.7918682536.

The spelling of 168006424 in words is "one hundred sixty-eight million, six thousand, four hundred twenty-four".