652646140 has 24 divisors (see below), whose sum is σ = 1371176352. Its totient is φ = 260940480.

The previous prime is 652646119. The next prime is 652646147. The reversal of 652646140 is 41646256.

It is a junction number, because it is equal to n+sod(n) for n = 652646096 and 652646105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652646147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48202 + ... + 60238.

It is an arithmetic number, because the mean of its divisors is an integer number (57132348).

Almost surely, 2^652646140 is an apocalyptic number.

It is an amenable number.

652646140 is an abundant number, since it is smaller than the sum of its proper divisors (718530212).

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

652646140 is a wasteful number, since it uses less digits than its factorization.

652646140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14757 (or 14755 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 652646140 is about 25546.9399341682. The cubic root of 652646140 is about 867.4129958394.

The spelling of 652646140 in words is "six hundred fifty-two million, six hundred forty-six thousand, one hundred forty".