649906300 has 36 divisors (see below), whose sum is σ = 1443103816. Its totient is φ = 253915200.

The previous prime is 649906273. The next prime is 649906307. The reversal of 649906300 is 3609946.

It is a self number, because there is not a number n which added to its sum of digits gives 649906300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649906307) 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, 71271 + ... + 79870.

Almost surely, 2^649906300 is an apocalyptic number.

It is an amenable number.

649906300 is an abundant number, since it is smaller than the sum of its proper divisors (793197516).

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

649906300 is a wasteful number, since it uses less digits than its factorization.

649906300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151198 (or 151191 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 649906300 is about 25493.2598935483. The cubic root of 649906300 is about 866.1974794411.

The spelling of 649906300 in words is "six hundred forty-nine million, nine hundred six thousand, three hundred".