923930280 has 768 divisors, whose sum is σ = 4136832000. Its totient is φ = 181149696.

The previous prime is 923930257. The next prime is 923930281. The reversal of 923930280 is 82039329.

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

It is not an unprimeable number, because it can be changed into a prime (923930281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11695281 + ... + 11695359.

It is an arithmetic number, because the mean of its divisors is an integer number (5386500).

Almost surely, 2^923930280 is an apocalyptic number.

923930280 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 923930280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2068416000).

923930280 is an abundant number, since it is smaller than the sum of its proper divisors (3212901720).

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

923930280 is a wasteful number, since it uses less digits than its factorization.

923930280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 923930280 is about 30396.2214757032. The cubic root of 923930280 is about 973.9718392380.

The spelling of 923930280 in words is "nine hundred twenty-three million, nine hundred thirty thousand, two hundred eighty".