649413222 has 16 divisors (see below), whose sum is σ = 1307545200. Its totient is φ = 215017952.

The previous prime is 649413221. The next prime is 649413283. The reversal of 649413222 is 222314946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649413221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362313 + ... + 364100.

It is an arithmetic number, because the mean of its divisors is an integer number (81721575).

Almost surely, 2^649413222 is an apocalyptic number.

649413222 is an abundant number, since it is smaller than the sum of its proper divisors (658131978).

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

649413222 is a wasteful number, since it uses less digits than its factorization.

649413222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726567.

The product of its digits is 20736, while the sum is 33.

The square root of 649413222 is about 25483.5873063429. The cubic root of 649413222 is about 865.9783653014.

The spelling of 649413222 in words is "six hundred forty-nine million, four hundred thirteen thousand, two hundred twenty-two".