652673440 has 48 divisors (see below), whose sum is σ = 1553761440. Its totient is φ = 259068160.

The previous prime is 652673407. The next prime is 652673453. The reversal of 652673440 is 44376256.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 652673440.

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, 5391 + ... + 36529.

It is an arithmetic number, because the mean of its divisors is an integer number (32370030).

Almost surely, 2^652673440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652673440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776880720).

652673440 is an abundant number, since it is smaller than the sum of its proper divisors (901088000).

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

652673440 is a wasteful number, since it uses less digits than its factorization.

652673440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31285 (or 31277 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 652673440 is about 25547.4742391494. The cubic root of 652673440 is about 867.4250902160.

The spelling of 652673440 in words is "six hundred fifty-two million, six hundred seventy-three thousand, four hundred forty".