1652650128 has 50 divisors (see below), whose sum is σ = 4783252694. Its totient is φ = 550882944.

The previous prime is 1652650093. The next prime is 1652650133. The reversal of 1652650128 is 8210562561.

1652650128 is a `hidden beast` number, since 1 + 6 + 526 + 5 + 0 + 128 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1649009664 + 3640464 = 40608^2 + 1908^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1652650092 and 1652650101.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 636301 + ... + 638892.

Almost surely, 2^1652650128 is an apocalyptic number.

1652650128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1652650128 is an abundant number, since it is smaller than the sum of its proper divisors (3130602566).

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

1652650128 is a wasteful number, since it uses less digits than its factorization.

1652650128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275213 (or 1275198 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1652650128 is about 40652.7997559824. The cubic root of 1652650128 is about 1182.2980515606.

The spelling of 1652650128 in words is "one billion, six hundred fifty-two million, six hundred fifty thousand, one hundred twenty-eight".