909048672 has 72 divisors (see below), whose sum is σ = 2954414736. Its totient is φ = 259727616.

The previous prime is 909048661. The next prime is 909048691. The reversal of 909048672 is 276840909.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 223443 + ... + 227474.

It is an arithmetic number, because the mean of its divisors is an integer number (41033538).

Almost surely, 2^909048672 is an apocalyptic number.

It is an amenable number.

909048672 is an abundant number, since it is smaller than the sum of its proper divisors (2045366064).

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

909048672 is a wasteful number, since it uses less digits than its factorization.

909048672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450940 (or 450929 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 909048672 is about 30150.4340267267. The cubic root of 909048672 is about 968.7143032729.

The spelling of 909048672 in words is "nine hundred nine million, forty-eight thousand, six hundred seventy-two".