1649528832 has 208 divisors, whose sum is σ = 5099651072. Its totient is φ = 464486400.

The previous prime is 1649528809. The next prime is 1649528863. The reversal of 1649528832 is 2388259461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10923957 + ... + 10924107.

Almost surely, 2^1649528832 is an apocalyptic number.

1649528832 is a gapful number since it is divisible by the number (12) 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 1649528832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549825536).

1649528832 is an abundant number, since it is smaller than the sum of its proper divisors (3450122240).

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

1649528832 is a wasteful number, since it uses less digits than its factorization.

1649528832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 290 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 1649528832 is about 40614.3919319248. The cubic root of 1649528832 is about 1181.5532623680.

The spelling of 1649528832 in words is "one billion, six hundred forty-nine million, five hundred twenty-eight thousand, eight hundred thirty-two".