648411222 has 32 divisors (see below), whose sum is σ = 1324084320. Its totient is φ = 211610880.

The previous prime is 648411217. The next prime is 648411241. The reversal of 648411222 is 222114846.

It is a super-2 number, since 2×648411222² = 840874225631066568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648411222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170154 + ... + 173922.

It is an arithmetic number, because the mean of its divisors is an integer number (41377635).

Almost surely, 2^648411222 is an apocalyptic number.

648411222 is an abundant number, since it is smaller than the sum of its proper divisors (675673098).

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

648411222 is a wasteful number, since it uses less digits than its factorization.

648411222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4368.

The product of its digits is 6144, while the sum is 30.

The square root of 648411222 is about 25463.9200045869. The cubic root of 648411222 is about 865.5327543263.

The spelling of 648411222 in words is "six hundred forty-eight million, four hundred eleven thousand, two hundred twenty-two".