208163424 has 96 divisors (see below), whose sum is σ = 630878976. Its totient is φ = 58867200.

The previous prime is 208163407. The next prime is 208163477. The reversal of 208163424 is 424361802.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×208163424² = 86664022182807552, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 208163391 and 208163400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66339 + ... + 69405.

It is an arithmetic number, because the mean of its divisors is an integer number (6571656).

Almost surely, 2^208163424 is an apocalyptic number.

208163424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208163424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315439488).

208163424 is an abundant number, since it is smaller than the sum of its proper divisors (422715552).

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

208163424 is a wasteful number, since it uses less digits than its factorization.

208163424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 208163424 is about 14427.8696972214. The cubic root of 208163424 is about 592.6543470844.

The spelling of 208163424 in words is "two hundred eight million, one hundred sixty-three thousand, four hundred twenty-four".