1210620 has 24 divisors (see below), whose sum is σ = 3389904. Its totient is φ = 322816.

The previous prime is 1210613. The next prime is 1210631. The reversal of 1210620 is 260121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1210596 and 1210605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10029 + ... + 10148.

It is an arithmetic number, because the mean of its divisors is an integer number (141246).

2^1210620 is an apocalyptic number.

1210620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210620 is an abundant number, since it is smaller than the sum of its proper divisors (2179284).

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

1210620 is a wasteful number, since it uses less digits than its factorization.

1210620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20189 (or 20187 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210620 is about 1100.2817820904. The cubic root of 1210620 is about 106.5784209377.

Adding to 1210620 its reverse (260121), we get a palindrome (1470741).

It can be divided in two parts, 1210 and 620, that added together give a triangular number (1830 = T₆₀).

The spelling of 1210620 in words is "one million, two hundred ten thousand, six hundred twenty".