649443482 has 4 divisors (see below), whose sum is σ = 974165226. Its totient is φ = 324721740.

The previous prime is 649443481. The next prime is 649443493. The reversal of 649443482 is 284344946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 434263921 + 215179561 = 20839^2 + 14669^2 .

It is not an unprimeable number, because it can be changed into a prime (649443481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162360869 + ... + 162360872.

Almost surely, 2^649443482 is an apocalyptic number.

649443482 is a deficient number, since it is larger than the sum of its proper divisors (324721744).

649443482 is a wasteful number, since it uses less digits than its factorization.

649443482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324721743.

The product of its digits is 663552, while the sum is 44.

The square root of 649443482 is about 25484.1810148963. The cubic root of 649443482 is about 865.9918154425.

The spelling of 649443482 in words is "six hundred forty-nine million, four hundred forty-three thousand, four hundred eighty-two".