1250220 has 48 divisors (see below), whose sum is σ = 3564288. Its totient is φ = 327360.

The previous prime is 1250203. The next prime is 1250237. The reversal of 1250220 is 220521.

It is an interprime number because it is at equal distance from previous prime (1250203) and next prime (1250237).

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

It is a junction number, because it is equal to n+sod(n) for n = 1250196 and 1250205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3865 + ... + 4175.

It is an arithmetic number, because the mean of its divisors is an integer number (74256).

2^1250220 is an apocalyptic number.

1250220 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 1250220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782144).

1250220 is an abundant number, since it is smaller than the sum of its proper divisors (2314068).

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

1250220 is a wasteful number, since it uses less digits than its factorization.

1250220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1250220 is about 1118.1323714123. The cubic root of 1250220 is about 107.7280538060.

Adding to 1250220 its reverse (220521), we get a palindrome (1470741).

The spelling of 1250220 in words is "one million, two hundred fifty thousand, two hundred twenty".