1650329772 has 48 divisors (see below), whose sum is σ = 4739411712. Its totient is φ = 435251520.

The previous prime is 1650329749. The next prime is 1650329789. The reversal of 1650329772 is 2779230561.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754554 + ... + 756737.

It is an arithmetic number, because the mean of its divisors is an integer number (98737744).

Almost surely, 2^1650329772 is an apocalyptic number.

1650329772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1650329772 is an abundant number, since it is smaller than the sum of its proper divisors (3089081940).

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

1650329772 is a wasteful number, since it uses less digits than its factorization.

1650329772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511318 (or 1511316 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 1650329772 is about 40624.2510330960. The cubic root of 1650329772 is about 1181.7444685119.

The spelling of 1650329772 in words is "one billion, six hundred fifty million, three hundred twenty-nine thousand, seven hundred seventy-two".