208442864 has 30 divisors (see below), whose sum is σ = 469795824. Its totient is φ = 89332320.

The previous prime is 208442827. The next prime is 208442873. The reversal of 208442864 is 468244802.

208442864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132152 + ... + 133719.

Almost surely, 2^208442864 is an apocalyptic number.

It is an amenable number.

208442864 is an abundant number, since it is smaller than the sum of its proper divisors (261352960).

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

208442864 is a wasteful number, since it uses less digits than its factorization.

208442864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265893 (or 265880 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 208442864 is about 14437.5504847602. The cubic root of 208442864 is about 592.9194229189.

The spelling of 208442864 in words is "two hundred eight million, four hundred forty-two thousand, eight hundred sixty-four".