1230210 has 24 divisors (see below), whose sum is σ = 3198780. Its totient is φ = 328032.

The previous prime is 1230199. The next prime is 1230223. The reversal of 1230210 is 120321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1225449 + 4761 = 1107^2 + 69^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230192 and 1230201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6745 + ... + 6924.

2^1230210 is an apocalyptic number.

1230210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230210 is an abundant number, since it is smaller than the sum of its proper divisors (1968570).

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

1230210 is a wasteful number, since it uses less digits than its factorization.

1230210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13682 (or 13679 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1230210 is about 1109.1483219119. The cubic root of 1230210 is about 107.1502242553.

Adding to 1230210 its reverse (120321), we get a palindrome (1350531).

The spelling of 1230210 in words is "one million, two hundred thirty thousand, two hundred ten".