920216824 has 8 divisors (see below), whose sum is σ = 1725406560. Its totient is φ = 460108408.

The previous prime is 920216809. The next prime is 920216827. The reversal of 920216824 is 428612029.

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

It is a self number, because there is not a number n which added to its sum of digits gives 920216824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920216827) by changing a digit.

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 as a sum of consecutive naturals, namely, 57513544 + ... + 57513559.

It is an arithmetic number, because the mean of its divisors is an integer number (215675820).

Almost surely, 2^920216824 is an apocalyptic number.

It is an amenable number.

920216824 is a deficient number, since it is larger than the sum of its proper divisors (805189736).

920216824 is a wasteful number, since it uses less digits than its factorization.

920216824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115027109 (or 115027105 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 920216824 is about 30335.0758034326. The cubic root of 920216824 is about 972.6652262316.

The spelling of 920216824 in words is "nine hundred twenty million, two hundred sixteen thousand, eight hundred twenty-four".