649323052 has 24 divisors (see below), whose sum is σ = 1299794720. Its totient is φ = 278035200.

The previous prime is 649323049. The next prime is 649323053. The reversal of 649323052 is 250323946.

649323052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 649322999 and 649323017.

It is not an unprimeable number, because it can be changed into a prime (649323053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23974 + ... + 43282.

Almost surely, 2^649323052 is an apocalyptic number.

It is an amenable number.

649323052 is an abundant number, since it is smaller than the sum of its proper divisors (650471668).

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

649323052 is a wasteful number, since it uses less digits than its factorization.

649323052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20521 (or 20519 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 649323052 is about 25481.8180670061. The cubic root of 649323052 is about 865.9382835369.

Adding to 649323052 its reverse (250323946), we get a palindrome (899646998).

The spelling of 649323052 in words is "six hundred forty-nine million, three hundred twenty-three thousand, fifty-two".