653340 has 24 divisors (see below), whose sum is σ = 1829520. Its totient is φ = 174208.

The previous prime is 653339. The next prime is 653357. The reversal of 653340 is 43356.

653340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5385 + ... + 5504.

It is an arithmetic number, because the mean of its divisors is an integer number (76230).

2⁶⁵³³⁴⁰ is an apocalyptic number.

653340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

653340 is an abundant number, since it is smaller than the sum of its proper divisors (1176180).

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

653340 is a wasteful number, since it uses less digits than its factorization.

653340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901 (or 10899 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 653340 is about 808.2945007855. The cubic root of 653340 is about 86.7720283347.

Adding to 653340 its reverse (43356), we get a palindrome (696696).

The spelling of 653340 in words is "six hundred fifty-three thousand, three hundred forty".