1220350 has 12 divisors (see below), whose sum is σ = 2269944. Its totient is φ = 488120.

The previous prime is 1220347. The next prime is 1220353. The reversal of 1220350 is 530221.

It is an interprime number because it is at equal distance from previous prime (1220347) and next prime (1220353).

It is a self number, because there is not a number n which added to its sum of digits gives 1220350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12154 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (189162).

2^1220350 is an apocalyptic number.

1220350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220350 is a deficient number, since it is larger than the sum of its proper divisors (1049594).

1220350 is a wasteful number, since it uses less digits than its factorization.

1220350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24419 (or 24414 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1220350 is about 1104.6945279126. The cubic root of 1220350 is about 106.8631902184.

Adding to 1220350 its reverse (530221), we get a palindrome (1750571).

The spelling of 1220350 in words is "one million, two hundred twenty thousand, three hundred fifty".