1958441 has 4 divisors (see below), whose sum is σ = 1965012. Its totient is φ = 1951872.

The previous prime is 1958431. The next prime is 1958449. The reversal of 1958441 is 1448591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1448591 = 431 ⋅3361.

It can be written as a sum of positive squares in 2 ways, for example, as 958441 + 1000000 = 979^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1958441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1958398 and 1958407.

It is not an unprimeable number, because it can be changed into a prime (1958449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816 + ... + 3441.

It is an arithmetic number, because the mean of its divisors is an integer number (491253).

2^1958441 is an apocalyptic number.

It is an amenable number.

1958441 is a deficient number, since it is larger than the sum of its proper divisors (6571).

1958441 is an equidigital number, since it uses as much as digits as its factorization.

1958441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570.

The product of its digits is 5760, while the sum is 32.

The square root of 1958441 is about 1399.4431035237. The cubic root of 1958441 is about 125.1133052643.

The spelling of 1958441 in words is "one million, nine hundred fifty-eight thousand, four hundred forty-one".