920018880 has 336 divisors, whose sum is σ = 3496263264. Its totient is φ = 220200960.

The previous prime is 920018867. The next prime is 920018921. The reversal of 920018880 is 88810029.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 3579712 + ... + 3579968.

Almost surely, 2^920018880 is an apocalyptic number.

920018880 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 920018880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1748131632).

920018880 is an abundant number, since it is smaller than the sum of its proper divisors (2576244384).

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

920018880 is a wasteful number, since it uses less digits than its factorization.

920018880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 920018880 is about 30331.8130021929. The cubic root of 920018880 is about 972.5954792447.

The spelling of 920018880 in words is "nine hundred twenty million, eighteen thousand, eight hundred eighty".