1958243 has 8 divisors (see below), whose sum is σ = 2335488. Its totient is φ = 1605384.

The previous prime is 1958237. The next prime is 1958249. The reversal of 1958243 is 3428591.

It is an interprime number because it is at equal distance from previous prime (1958237) and next prime (1958249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1958243 - 2¹⁸ = 1696099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1958249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5921 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (291936).

2^1958243 is an apocalyptic number.

1958243 is a deficient number, since it is larger than the sum of its proper divisors (377245).

1958243 is a wasteful number, since it uses less digits than its factorization.

1958243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193.

The product of its digits is 8640, while the sum is 32.

The square root of 1958243 is about 1399.3723593097. The cubic root of 1958243 is about 125.1090887694.

The spelling of 1958243 in words is "one million, nine hundred fifty-eight thousand, two hundred forty-three".