1649205152 has 36 divisors (see below), whose sum is σ = 3776977890. Its totient is φ = 706801536.

The previous prime is 1649205119. The next prime is 1649205157. The reversal of 1649205152 is 2515029461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1331082256 + 318122896 = 36484^2 + 17836^2 .

It is not an unprimeable number, because it can be changed into a prime (1649205157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 524327 + ... + 527462.

Almost surely, 2^1649205152 is an apocalyptic number.

It is an amenable number.

1649205152 is an abundant number, since it is smaller than the sum of its proper divisors (2127772738).

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

1649205152 is a wasteful number, since it uses less digits than its factorization.

1649205152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051813 (or 1051798 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1649205152 is about 40610.4069420635. The cubic root of 1649205152 is about 1181.4759735951.

The spelling of 1649205152 in words is "one billion, six hundred forty-nine million, two hundred five thousand, one hundred fifty-two".