1262220 has 48 divisors (see below), whose sum is σ = 3585120. Its totient is φ = 331776.

The previous prime is 1262207. The next prime is 1262221. The reversal of 1262220 is 222621.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1262220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6444 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (74690).

2^1262220 is an apocalyptic number.

1262220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1262220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792560).

1262220 is an abundant number, since it is smaller than the sum of its proper divisors (2322900).

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

1262220 is a wasteful number, since it uses less digits than its factorization.

1262220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1262220 is about 1123.4856474384. The cubic root of 1262220 is about 108.0716260122.

1262220 divided by its sum of digits (15) gives a palindrome (84148).

Adding to 1262220 its reverse (222621), we get a palindrome (1484841).

It can be divided in two parts, 126 and 2220, that added together give a triangular number (2346 = T₆₈).

The spelling of 1262220 in words is "one million, two hundred sixty-two thousand, two hundred twenty".