648106742 has 32 divisors (see below), whose sum is σ = 1079013312. Its totient is φ = 290397184.

The previous prime is 648106741. The next prime is 648106787. The reversal of 648106742 is 247601846.

648106742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 648106696 and 648106705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648106741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180428 + ... + 183984.

It is an arithmetic number, because the mean of its divisors is an integer number (33719166).

Almost surely, 2^648106742 is an apocalyptic number.

648106742 is a deficient number, since it is larger than the sum of its proper divisors (430906570).

648106742 is a wasteful number, since it uses less digits than its factorization.

648106742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 648106742 is about 25457.9406472715. The cubic root of 648106742 is about 865.3972545768.

The spelling of 648106742 in words is "six hundred forty-eight million, one hundred six thousand, seven hundred forty-two".