919460644 has 12 divisors (see below), whose sum is σ = 1611080604. Its totient is φ = 459151904.

The previous prime is 919460621. The next prime is 919460677. The reversal of 919460644 is 446064919.

It can be written as a sum of positive squares in 2 ways, for example, as 600838144 + 318622500 = 24512^2 + 17850^2 .

It is a zygodrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 919460644.

It is an unprimeable number.

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, 141019 + ... + 147394.

It is an arithmetic number, because the mean of its divisors is an integer number (134256717).

Almost surely, 2^919460644 is an apocalyptic number.

It is an amenable number.

919460644 is a deficient number, since it is larger than the sum of its proper divisors (691619960).

919460644 is a wasteful number, since it uses less digits than its factorization.

919460644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289214 (or 289212 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 919460644 is about 30322.6094523542. The cubic root of 919460644 is about 972.3987268842.

The spelling of 919460644 in words is "nine hundred nineteen million, four hundred sixty thousand, six hundred forty-four".