653442 has 8 divisors (see below), whose sum is σ = 1306896. Its totient is φ = 217812.

The previous prime is 653431. The next prime is 653461. The reversal of 653442 is 244356.

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

653442 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54448 + ... + 54459.

It is an arithmetic number, because the mean of its divisors is an integer number (163362).

2⁶⁵³⁴⁴² is an apocalyptic number.

653442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

653442 is a wasteful number, since it uses less digits than its factorization.

653442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108912.

The product of its digits is 2880, while the sum is 24.

The square root of 653442 is about 808.3575941376. The cubic root of 653442 is about 86.7765437408.

Adding to 653442 its reverse (244356), we get a palindrome (897798).

The spelling of 653442 in words is "six hundred fifty-three thousand, four hundred forty-two".