923398144 has 52 divisors (see below), whose sum is σ = 1878360120. Its totient is φ = 453754880.

The previous prime is 923398141. The next prime is 923398199. The reversal of 923398144 is 441893329.

It is a self number, because there is not a number n which added to its sum of digits gives 923398144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923398141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239754 + ... + 243574.

It is an arithmetic number, because the mean of its divisors is an integer number (36122310).

Almost surely, 2^923398144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 923398144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939180060).

923398144 is an abundant number, since it is smaller than the sum of its proper divisors (954961976).

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

923398144 is an equidigital number, since it uses as much as digits as its factorization.

923398144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904 (or 3882 counting only the distinct ones).

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

The square root of 923398144 is about 30387.4668901506. The cubic root of 923398144 is about 973.7848175461.

The spelling of 923398144 in words is "nine hundred twenty-three million, three hundred ninety-eight thousand, one hundred forty-four".