649040946 has 32 divisors (see below), whose sum is σ = 1322913600. Its totient is φ = 212224320.

The previous prime is 649040927. The next prime is 649040957.

649040946 is nontrivially palindromic in base 10.

649040946 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 = 649040898 and 649040907.

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, 189820 + ... + 193208.

It is an arithmetic number, because the mean of its divisors is an integer number (41341050).

Almost surely, 2^649040946 is an apocalyptic number.

649040946 is an abundant number, since it is smaller than the sum of its proper divisors (673872654).

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

649040946 is a wasteful number, since it uses less digits than its factorization.

649040946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3994.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 649040946 is about 25476.2820285849. The cubic root of 649040946 is about 865.8128596970.

The spelling of 649040946 in words is "six hundred forty-nine million, forty thousand, nine hundred forty-six".