649455060 has 24 divisors (see below), whose sum is σ = 1818474336. Its totient is φ = 173188000.

The previous prime is 649455049. The next prime is 649455073. The reversal of 649455060 is 60554946.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5412066 + ... + 5412185.

It is an arithmetic number, because the mean of its divisors is an integer number (75769764).

Almost surely, 2^649455060 is an apocalyptic number.

649455060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

649455060 is an abundant number, since it is smaller than the sum of its proper divisors (1169019276).

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

649455060 is a wasteful number, since it uses less digits than its factorization.

649455060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10824263 (or 10824261 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 649455060 is about 25484.4081744113. The cubic root of 649455060 is about 865.9969615889.

The spelling of 649455060 in words is "six hundred forty-nine million, four hundred fifty-five thousand, sixty".