652581441 has 40 divisors (see below), whose sum is σ = 996478560. Its totient is φ = 425513088.

The previous prime is 652581437. The next prime is 652581463. The reversal of 652581441 is 144185256.

It is a happy number.

It is not a de Polignac number, because 652581441 - 2² = 652581437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 652581396 and 652581405.

It is not an unprimeable number, because it can be changed into a prime (652581481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 759270 + ... + 760128.

It is an arithmetic number, because the mean of its divisors is an integer number (24911964).

Almost surely, 2^652581441 is an apocalyptic number.

It is an amenable number.

652581441 is a deficient number, since it is larger than the sum of its proper divisors (343897119).

652581441 is a wasteful number, since it uses less digits than its factorization.

652581441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1058 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 652581441 is about 25545.6736258804. The cubic root of 652581441 is about 867.3843317060.

The spelling of 652581441 in words is "six hundred fifty-two million, five hundred eighty-one thousand, four hundred forty-one".