649846900 has 36 divisors (see below), whose sum is σ = 1414090048. Its totient is φ = 259215840.

The previous prime is 649846867. The next prime is 649846907. The reversal of 649846900 is 9648946.

It is a super-2 number, since 2×649846900² = 844601986879220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649846907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27847 + ... + 45553.

Almost surely, 2^649846900 is an apocalyptic number.

It is an amenable number.

649846900 is an abundant number, since it is smaller than the sum of its proper divisors (764243148).

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

649846900 is a wasteful number, since it uses less digits than its factorization.

649846900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18088 (or 18081 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 649846900 is about 25492.0948531108. The cubic root of 649846900 is about 866.1710891251.

The spelling of 649846900 in words is "six hundred forty-nine million, eight hundred forty-six thousand, nine hundred".