1573242 has 32 divisors (see below), whose sum is σ = 3478464. Its totient is φ = 474320.

The previous prime is 1573237. The next prime is 1573283. The reversal of 1573242 is 2423751.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 1 + 5³ + 7 + 3⁵ + 2 + 4¹⁰ + 2¹⁹ .

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7888 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (108702).

2^1573242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1573242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1739232).

1573242 is an abundant number, since it is smaller than the sum of its proper divisors (1905222).

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

1573242 is a wasteful number, since it uses less digits than its factorization.

1573242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 213 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 1573242 is about 1254.2894402808. The cubic root of 1573242 is about 116.3050334871.

Adding to 1573242 its reverse (2423751), we get a palindrome (3996993).

The spelling of 1573242 in words is "one million, five hundred seventy-three thousand, two hundred forty-two".