1058220 has 36 divisors (see below), whose sum is σ = 3210480. Its totient is φ = 282144.

The previous prime is 1058203. The next prime is 1058221. The reversal of 1058220 is 228501.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1058220² = 2239659136800, which contains 22 as substring.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1058193 and 1058202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1058221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2760 + ... + 3119.

It is an arithmetic number, because the mean of its divisors is an integer number (89180).

2^1058220 is an apocalyptic number.

1058220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1058220 is an abundant number, since it is smaller than the sum of its proper divisors (2152260).

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

1058220 is a wasteful number, since it uses less digits than its factorization.

1058220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894 (or 5889 counting only the distinct ones).

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

The square root of 1058220 is about 1028.6982064726. The cubic root of 1058220 is about 101.9041775986.

The spelling of 1058220 in words is "one million, fifty-eight thousand, two hundred twenty".