1649232832 has 168 divisors, whose sum is σ = 3951925040. Its totient is φ = 678703104.

The previous prime is 1649232817. The next prime is 1649232839. The reversal of 1649232832 is 2382329461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649232839) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 86801719 + ... + 86801737.

Almost surely, 2^1649232832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649232832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975962520).

1649232832 is an abundant number, since it is smaller than the sum of its proper divisors (2302692208).

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

1649232832 is an equidigital number, since it uses as much as digits as its factorization.

1649232832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 51 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 1649232832 is about 40610.7477399764. The cubic root of 1649232832 is about 1181.4825834605.

The spelling of 1649232832 in words is "one billion, six hundred forty-nine million, two hundred thirty-two thousand, eight hundred thirty-two".