919424648 has 8 divisors (see below), whose sum is σ = 1723921230. Its totient is φ = 459712320.

The previous prime is 919424647. The next prime is 919424663. The reversal of 919424648 is 846424919.

919424648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 604078084 + 315346564 = 24578^2 + 17758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (919424647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57464033 + ... + 57464048.

Almost surely, 2^919424648 is an apocalyptic number.

It is an amenable number.

919424648 is a deficient number, since it is larger than the sum of its proper divisors (804496582).

919424648 is a wasteful number, since it uses less digits than its factorization.

919424648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114928087 (or 114928083 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 919424648 is about 30322.0158960449. The cubic root of 919424648 is about 972.3860372270.

The spelling of 919424648 in words is "nine hundred nineteen million, four hundred twenty-four thousand, six hundred forty-eight".