1210830 has 16 divisors (see below), whose sum is σ = 2906064. Its totient is φ = 322880.

The previous prime is 1210819. The next prime is 1210831. The reversal of 1210830 is 380121.

It is a happy number.

It is a super-2 number, since 2×1210830² = 2932218577800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20151 + ... + 20210.

It is an arithmetic number, because the mean of its divisors is an integer number (181629).

2^1210830 is an apocalyptic number.

1210830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210830 is an abundant number, since it is smaller than the sum of its proper divisors (1695234).

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

1210830 is a wasteful number, since it uses less digits than its factorization.

1210830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40371.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1210830 is about 1100.3772080519. The cubic root of 1210830 is about 106.5845831175.

Adding to 1210830 its reverse (380121), we get a palindrome (1590951).

The spelling of 1210830 in words is "one million, two hundred ten thousand, eight hundred thirty".