648387322 has 8 divisors (see below), whose sum is σ = 1060997472. Its totient is φ = 294721500.

The previous prime is 648387287. The next prime is 648387329. The reversal of 648387322 is 223783846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×648387322² = 840812238660663368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648387329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14736054 + ... + 14736097.

It is an arithmetic number, because the mean of its divisors is an integer number (132624684).

Almost surely, 2^648387322 is an apocalyptic number.

648387322 is a deficient number, since it is larger than the sum of its proper divisors (412610150).

648387322 is a wasteful number, since it uses less digits than its factorization.

648387322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29472164.

The product of its digits is 387072, while the sum is 43.

The square root of 648387322 is about 25463.4507088101. The cubic root of 648387322 is about 865.5221198779.

The spelling of 648387322 in words is "six hundred forty-eight million, three hundred eighty-seven thousand, three hundred twenty-two".