1649888352 has 288 divisors, whose sum is σ = 5891139072. Its totient is φ = 443418624.

The previous prime is 1649888341. The next prime is 1649888393. The reversal of 1649888352 is 2538889461.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 924453 + ... + 926235.

It is an arithmetic number, because the mean of its divisors is an integer number (20455344).

Almost surely, 2^1649888352 is an apocalyptic number.

1649888352 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 1649888352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2945569536).

1649888352 is an abundant number, since it is smaller than the sum of its proper divisors (4241250720).

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

1649888352 is a wasteful number, since it uses less digits than its factorization.

1649888352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1812 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 1649888352 is about 40618.8177080525. The cubic root of 1649888352 is about 1181.6390972163.

The spelling of 1649888352 in words is "one billion, six hundred forty-nine million, eight hundred eighty-eight thousand, three hundred fifty-two".