649410048 has 200 divisors, whose sum is σ = 2216210832. Its totient is φ = 185462784.

The previous prime is 649410023. The next prime is 649410049. The reversal of 649410048 is 840014946.

It is a happy number.

649410048 is a `hidden beast` number, since 649 + 4 + 1 + 0 + 0 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 649409994 and 649410021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649410049) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 289186 + ... + 291422.

Almost surely, 2^649410048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649410048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108105416).

649410048 is an abundant number, since it is smaller than the sum of its proper divisors (1566800784).

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

649410048 is an equidigital number, since it uses as much as digits as its factorization.

649410048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 649410048 is about 25483.5250308901. The cubic root of 649410048 is about 865.9769544792.

The spelling of 649410048 in words is "six hundred forty-nine million, four hundred ten thousand, forty-eight".