1058842 has 4 divisors (see below), whose sum is σ = 1588266. Its totient is φ = 529420.

The previous prime is 1058839. The next prime is 1058861. The reversal of 1058842 is 2488501.

It is a Cunningham number, because it is equal to 1029²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2488501 = 509 ⋅4889.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 1 = 1029^2 + 1^2 .

It is a super-2 number, since 2×1058842² = 2242292761928, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 0 + 5² + 8⁴ + 8⁴ + 4¹⁰ + 2¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 1058842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264709 + ... + 264712.

2^1058842 is an apocalyptic number.

1058842 is a deficient number, since it is larger than the sum of its proper divisors (529424).

1058842 is an equidigital number, since it uses as much as digits as its factorization.

1058842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529423.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1058842 is about 1029.0004859085. Note that the first 3 decimals coincide. The cubic root of 1058842 is about 101.9241394162.

The spelling of 1058842 in words is "one million, fifty-eight thousand, eight hundred forty-two".