1653648828 has 48 divisors (see below), whose sum is σ = 4163134080. Its totient is φ = 507858624.

The previous prime is 1653648827. The next prime is 1653648833. The reversal of 1653648828 is 8288463561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653648823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75643 + ... + 95021.

It is an arithmetic number, because the mean of its divisors is an integer number (86731960).

Almost surely, 2^1653648828 is an apocalyptic number.

It is an amenable number.

1653648828 is an abundant number, since it is smaller than the sum of its proper divisors (2509485252).

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

1653648828 is a wasteful number, since it uses less digits than its factorization.

1653648828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19946 (or 19944 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 1653648828 is about 40665.0811876726. The cubic root of 1653648828 is about 1182.5361586829.

The spelling of 1653648828 in words is "one billion, six hundred fifty-three million, six hundred forty-eight thousand, eight hundred twenty-eight".