649710446 has 16 divisors (see below), whose sum is σ = 1215043200. Its totient is φ = 253133880.

The previous prime is 649710443. The next prime is 649710511. The reversal of 649710446 is 644017946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649710443) 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, 2109296 + ... + 2109603.

It is an arithmetic number, because the mean of its divisors is an integer number (75940200).

Almost surely, 2^649710446 is an apocalyptic number.

649710446 is a deficient number, since it is larger than the sum of its proper divisors (565332754).

649710446 is a wasteful number, since it uses less digits than its factorization.

649710446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218919.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 649710446 is about 25489.4183142731. The cubic root of 649710446 is about 866.1104590580.

The spelling of 649710446 in words is "six hundred forty-nine million, seven hundred ten thousand, four hundred forty-six".