1628500050 has 108 divisors (see below), whose sum is σ = 4574403834. Its totient is φ = 415324800.

The previous prime is 1628500037. The next prime is 1628500061. The reversal of 1628500050 is 500058261.

It can be written as a sum of positive squares in 3 ways, for example, as 1383170481 + 245329569 = 37191^2 + 15663^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1628499987 and 1628500023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 234630 + ... + 241470.

Almost surely, 2^1628500050 is an apocalyptic number.

1628500050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1628500050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287201917).

1628500050 is an abundant number, since it is smaller than the sum of its proper divisors (2945903784).

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

1628500050 is a wasteful number, since it uses less digits than its factorization.

1628500050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1628500050 is about 40354.6781674690. The cubic root of 1628500050 is about 1176.5108194894.

The spelling of 1628500050 in words is "one billion, six hundred twenty-eight million, five hundred thousand, fifty".