653042 has 8 divisors (see below), whose sum is σ = 1054956. Its totient is φ = 301392.

The previous prime is 653033. The next prime is 653057. The reversal of 653042 is 240356.

It can be written as a sum of positive squares in 2 ways, for example, as 638401 + 14641 = 799^2 + 121^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12533 + ... + 12584.

2⁶⁵³⁰⁴² is an apocalyptic number.

653042 is a deficient number, since it is larger than the sum of its proper divisors (401914).

653042 is a wasteful number, since it uses less digits than its factorization.

653042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25132.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 653042 is about 808.1101410080. The cubic root of 653042 is about 86.7588335730.

Adding to 653042 its reverse (240356), we get a palindrome (893398).

Subtracting from 653042 its reverse (240356), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 653042 in words is "six hundred fifty-three thousand, forty-two".