1220058 has 48 divisors (see below), whose sum is σ = 3159936. Its totient is φ = 332640.

The previous prime is 1220041. The next prime is 1220071. The reversal of 1220058 is 8500221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1220058.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2688 + ... + 3108.

It is an arithmetic number, because the mean of its divisors is an integer number (65832).

2^1220058 is an apocalyptic number.

1220058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579968).

1220058 is an abundant number, since it is smaller than the sum of its proper divisors (1939878).

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

1220058 is a wasteful number, since it uses less digits than its factorization.

1220058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1220058 is about 1104.5623567730. The cubic root of 1220058 is about 106.8546662865.

Adding to 1220058 its reverse (8500221), we get a palindrome (9720279).

The spelling of 1220058 in words is "one million, two hundred twenty thousand, fifty-eight".