653242 has 8 divisors (see below), whose sum is σ = 1037556. Its totient is φ = 307392.

The previous prime is 653209. The next prime is 653243. The reversal of 653242 is 242356.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 531441 + 121801 = 729^2 + 349^2 .

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

It is a super-2 number, since 2×653242² = 853450221128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (653243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9573 + ... + 9640.

2⁶⁵³²⁴² is an apocalyptic number.

653242 is a deficient number, since it is larger than the sum of its proper divisors (384314).

653242 is a wasteful number, since it uses less digits than its factorization.

653242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19232.

The product of its digits is 1440, while the sum is 22.

The square root of 653242 is about 808.2338770430. The cubic root of 653242 is about 86.7676895606.

Adding to 653242 its reverse (242356), we get a palindrome (895598).

The spelling of 653242 in words is "six hundred fifty-three thousand, two hundred forty-two".