208438142 has 8 divisors (see below), whose sum is σ = 341080632. Its totient is φ = 94744600.

The previous prime is 208438127. The next prime is 208438163. The reversal of 208438142 is 241834802.

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

It is a junction number, because it is equal to n+sod(n) for n = 208438099 and 208438108.

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, 4737209 + ... + 4737252.

It is an arithmetic number, because the mean of its divisors is an integer number (42635079).

Almost surely, 2^208438142 is an apocalyptic number.

208438142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

208438142 is a deficient number, since it is larger than the sum of its proper divisors (132642490).

208438142 is a wasteful number, since it uses less digits than its factorization.

208438142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9474474.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 208438142 is about 14437.3869519384. The cubic root of 208438142 is about 592.9149456142.

The spelling of 208438142 in words is "two hundred eight million, four hundred thirty-eight thousand, one hundred forty-two".