652648428 has 144 divisors (see below), whose sum is σ = 1831624704. Its totient is φ = 202487040.

The previous prime is 652648427. The next prime is 652648433. The reversal of 652648428 is 824846256.

It is not an unprimeable number, because it can be changed into a prime (652648427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2098393 + ... + 2098703.

It is an arithmetic number, because the mean of its divisors is an integer number (12719616).

Almost surely, 2^652648428 is an apocalyptic number.

652648428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652648428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915812352).

652648428 is an abundant number, since it is smaller than the sum of its proper divisors (1178976276).

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

652648428 is a wasteful number, since it uses less digits than its factorization.

652648428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 460 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 652648428 is about 25546.9847144433. The cubic root of 652648428 is about 867.4140094763.

The spelling of 652648428 in words is "six hundred fifty-two million, six hundred forty-eight thousand, four hundred twenty-eight".