649581034 has 8 divisors (see below), whose sum is σ = 1007970660. Its totient is φ = 313590816.

The previous prime is 649581029. The next prime is 649581041. The reversal of 649581034 is 430185946.

It can be written as a sum of positive squares in 2 ways, for example, as 637310025 + 12271009 = 25245^2 + 3503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5599779 + ... + 5599894.

Almost surely, 2^649581034 is an apocalyptic number.

649581034 is a deficient number, since it is larger than the sum of its proper divisors (358389626).

649581034 is a wasteful number, since it uses less digits than its factorization.

649581034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11199704.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 649581034 is about 25486.8796442405. The cubic root of 649581034 is about 866.0529500912.

The spelling of 649581034 in words is "six hundred forty-nine million, five hundred eighty-one thousand, thirty-four".