1558242 has 48 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 436896.

The previous prime is 1558223. The next prime is 1558243. The reversal of 1558242 is 2428551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1558243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10384 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (81900).

2^1558242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1558242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965600).

1558242 is an abundant number, since it is smaller than the sum of its proper divisors (2372958).

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

1558242 is a wasteful number, since it uses less digits than its factorization.

1558242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 244 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1558242 is about 1248.2956380602. The cubic root of 1558242 is about 115.9342175578.

The spelling of 1558242 in words is "one million, five hundred fifty-eight thousand, two hundred forty-two".