652309140 has 192 divisors, whose sum is σ = 2249533440. Its totient is φ = 137894400.

The previous prime is 652309117. The next prime is 652309199. The reversal of 652309140 is 41903256.

652309140 is a nontrivial binomial coefficient, being equal to C(36120, 2).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 652309098 and 652309107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 342190 + ... + 344090.

It is an arithmetic number, because the mean of its divisors is an integer number (11716320).

Almost surely, 2^652309140 is an apocalyptic number.

652309140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

652309140 is the 36119-th triangular number and also the 18060-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652309140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1124766720).

652309140 is an abundant number, since it is smaller than the sum of its proper divisors (1597224300).

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

652309140 is a wasteful number, since it uses less digits than its factorization.

652309140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 652309140 is about 25540.3433806204. The cubic root of 652309140 is about 867.2636711697.

The spelling of 652309140 in words is "six hundred fifty-two million, three hundred nine thousand, one hundred forty".