649200002 has 64 divisors (see below), whose sum is σ = 1134673920. Its totient is φ = 275889600.

The previous prime is 649199989. The next prime is 649200007. The reversal of 649200002 is 200002946.

It is not an unprimeable number, because it can be changed into a prime (649200007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2716199 + ... + 2716437.

It is an arithmetic number, because the mean of its divisors is an integer number (17729280).

Almost surely, 2^649200002 is an apocalyptic number.

649200002 is a deficient number, since it is larger than the sum of its proper divisors (485473918).

649200002 is a wasteful number, since it uses less digits than its factorization.

649200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 649200002 is about 25479.4034859531. The cubic root of 649200002 is about 865.8835801875.

Adding to 649200002 its reverse (200002946), we get a palindrome (849202948).

The spelling of 649200002 in words is "six hundred forty-nine million, two hundred thousand, two".