1628995652 has 6 divisors (see below), whose sum is σ = 2850742398. Its totient is φ = 814497824.

The previous prime is 1628995649. The next prime is 1628995673. The reversal of 1628995652 is 2565998261.

It can be written as a sum of positive squares in only one way, i.e., 894368836 + 734626816 = 29906^2 + 27104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1628995594 and 1628995603.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203624453 + ... + 203624460.

It is an arithmetic number, because the mean of its divisors is an integer number (475123733).

Almost surely, 2^1628995652 is an apocalyptic number.

It is an amenable number.

1628995652 is a deficient number, since it is larger than the sum of its proper divisors (1221746746).

1628995652 is a wasteful number, since it uses less digits than its factorization.

1628995652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407248917 (or 407248915 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 1628995652 is about 40360.8182771361. The cubic root of 1628995652 is about 1176.6301567031.

The spelling of 1628995652 in words is "one billion, six hundred twenty-eight million, nine hundred ninety-five thousand, six hundred fifty-two".