649338000 has 80 divisors (see below), whose sum is σ = 2093485056. Its totient is φ = 173155200.

The previous prime is 649337987. The next prime is 649338017. The reversal of 649338000 is 833946.

It is a tau number, because it is divible by the number of its divisors (80).

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, 48112 + ... + 60111.

Almost surely, 2^649338000 is an apocalyptic number.

649338000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

649338000 is an abundant number, since it is smaller than the sum of its proper divisors (1444147056).

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

649338000 is a wasteful number, since it uses less digits than its factorization.

649338000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108249 (or 108233 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 649338000 is about 25482.1113724903. Note that the first 3 decimals coincide. The cubic root of 649338000 is about 865.9449283783.

The spelling of 649338000 in words is "six hundred forty-nine million, three hundred thirty-eight thousand".