208231000 has 32 divisors (see below), whose sum is σ = 487262880. Its totient is φ = 83292000.

The previous prime is 208230949. The next prime is 208231021. The reversal of 208231000 is 132802.

It is a happy number.

It is a super-2 number, since 2×208231000² = 86720298722000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103116 + ... + 105115.

It is an arithmetic number, because the mean of its divisors is an integer number (15226965).

Almost surely, 2^208231000 is an apocalyptic number.

208231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208231000 is an abundant number, since it is smaller than the sum of its proper divisors (279031880).

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

208231000 is a wasteful number, since it uses less digits than its factorization.

208231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208252 (or 208238 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 208231000 is about 14430.2113636634. The cubic root of 208231000 is about 592.7184711853.

Adding to 208231000 its reverse (132802), we get a palindrome (208363802).

The spelling of 208231000 in words is "two hundred eight million, two hundred thirty-one thousand".