649201734 has 24 divisors (see below), whose sum is σ = 1407130920. Its totient is φ = 216319488.

The previous prime is 649201727. The next prime is 649201739. The reversal of 649201734 is 437102946.

649201734 is a `hidden beast` number, since 649 + 2 + 0 + 1 + 7 + 3 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649201739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60934 + ... + 70790.

It is an arithmetic number, because the mean of its divisors is an integer number (58630455).

Almost surely, 2^649201734 is an apocalyptic number.

649201734 is an abundant number, since it is smaller than the sum of its proper divisors (757929186).

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

649201734 is a wasteful number, since it uses less digits than its factorization.

649201734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13524 (or 13521 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 649201734 is about 25479.4374741673. The cubic root of 649201734 is about 865.8843502168.

The spelling of 649201734 in words is "six hundred forty-nine million, two hundred one thousand, seven hundred thirty-four".