649292202 has 48 divisors (see below), whose sum is σ = 1532086920. Its totient is φ = 197531136.

The previous prime is 649292201. The next prime is 649292207. The reversal of 649292202 is 202292946.

It is a happy number.

649292202 is a `hidden beast` number, since 649 + 2 + 9 + 2 + 2 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 434347281 + 214944921 = 20841^2 + 14661^2 .

It is not an unprimeable number, because it can be changed into a prime (649292201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5238 + ... + 36414.

Almost surely, 2^649292202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649292202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766043460).

649292202 is an abundant number, since it is smaller than the sum of its proper divisors (882794718).

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

649292202 is a wasteful number, since it uses less digits than its factorization.

649292202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31287 (or 31284 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 649292202 is about 25481.2127262421. The cubic root of 649292202 is about 865.9245694496.

The spelling of 649292202 in words is "six hundred forty-nine million, two hundred ninety-two thousand, two hundred two".