648351432 has 64 divisors (see below), whose sum is σ = 1830537600. Its totient is φ = 212569920.

The previous prime is 648351427. The next prime is 648351437. The reversal of 648351432 is 234153846.

648351432 is a `hidden beast` number, since 64 + 83 + 514 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (648351427) and next prime (648351437).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (648351437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11428 + ... + 37779.

It is an arithmetic number, because the mean of its divisors is an integer number (28602150).

Almost surely, 2^648351432 is an apocalyptic number.

It is an amenable number.

648351432 is an abundant number, since it is smaller than the sum of its proper divisors (1182186168).

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

648351432 is a wasteful number, since it uses less digits than its factorization.

648351432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49283 (or 49273 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 648351432 is about 25462.7459634659. The cubic root of 648351432 is about 865.5061499162.

The spelling of 648351432 in words is "six hundred forty-eight million, three hundred fifty-one thousand, four hundred thirty-two".