208442839000 has 64 divisors (see below), whose sum is σ = 532097748000. Its totient is φ = 75797392000.

The previous prime is 208442838979. The next prime is 208442839027. The reversal of 208442839000 is 938244802.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 9463675 + ... + 9485674.

Almost surely, 2^208442839000 is an apocalyptic number.

208442839000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208442839000 is an abundant number, since it is smaller than the sum of its proper divisors (323654909000).

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

208442839000 is a wasteful number, since it uses less digits than its factorization.

208442839000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18949381 (or 18949367 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 208442839000 in words is "two hundred eight billion, four hundred forty-two million, eight hundred thirty-nine thousand".