1650488080 has 40 divisors (see below), whose sum is σ = 3846015000. Its totient is φ = 658710528.

The previous prime is 1650488069. The next prime is 1650488083. The reversal of 1650488080 is 808840561.

It can be written as a sum of positive squares in 4 ways, for example, as 478384384 + 1172103696 = 21872^2 + 34236^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1650488080² = 5448221804444172800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1650488083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12946 + ... + 58894.

It is an arithmetic number, because the mean of its divisors is an integer number (96150375).

Almost surely, 2^1650488080 is an apocalyptic number.

1650488080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1650488080 is an abundant number, since it is smaller than the sum of its proper divisors (2195526920).

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

1650488080 is a wasteful number, since it uses less digits than its factorization.

1650488080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46411 (or 46405 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 1650488080 is about 40626.1994284476. The cubic root of 1650488080 is about 1181.7822536110.

The spelling of 1650488080 in words is "one billion, six hundred fifty million, four hundred eighty-eight thousand, eighty".