649722294 has 96 divisors (see below), whose sum is σ = 1574524224. Its totient is φ = 192326400.

The previous prime is 649722289. The next prime is 649722329. The reversal of 649722294 is 492227946.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 874087 + ... + 874829.

It is an arithmetic number, because the mean of its divisors is an integer number (16401294).

Almost surely, 2^649722294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649722294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787262112).

649722294 is an abundant number, since it is smaller than the sum of its proper divisors (924801930).

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

649722294 is a wasteful number, since it uses less digits than its factorization.

649722294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 899 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 649722294 is about 25489.6507233818. The cubic root of 649722294 is about 866.1157237696.

The spelling of 649722294 in words is "six hundred forty-nine million, seven hundred twenty-two thousand, two hundred ninety-four".