1650620448 has 144 divisors (see below), whose sum is σ = 4825941120. Its totient is φ = 534901248.

The previous prime is 1650620437. The next prime is 1650620467. The reversal of 1650620448 is 8440260561.

It is a tau number, because it is divible by the number of its divisors (144).

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

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 23 ways as a sum of consecutive naturals, for example, 2666283 + ... + 2666901.

It is an arithmetic number, because the mean of its divisors is an integer number (33513480).

Almost surely, 2^1650620448 is an apocalyptic number.

1650620448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650620448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412970560).

1650620448 is an abundant number, since it is smaller than the sum of its proper divisors (3175320672).

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

1650620448 is a wasteful number, since it uses less digits than its factorization.

1650620448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1650620448 is about 40627.8284923032. The cubic root of 1650620448 is about 1181.8138454723.

The spelling of 1650620448 in words is "one billion, six hundred fifty million, six hundred twenty thousand, four hundred forty-eight".