403122320 has 40 divisors (see below), whose sum is σ = 942528960. Its totient is φ = 160342400.

The previous prime is 403122287. The next prime is 403122323. The reversal of 403122320 is 23221304.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (403122323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 28395.

It is an arithmetic number, because the mean of its divisors is an integer number (23563224).

Almost surely, 2^403122320 is an apocalyptic number.

403122320 is a gapful number since it is divisible by the number (40) 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 403122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471264480).

403122320 is an abundant number, since it is smaller than the sum of its proper divisors (539406640).

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

403122320 is a wasteful number, since it uses less digits than its factorization.

403122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343 (or 28337 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 403122320 is about 20077.9062653455. The cubic root of 403122320 is about 738.7184538986.

Adding to 403122320 its reverse (23221304), we get a palindrome (426343624).

The spelling of 403122320 in words is "four hundred three million, one hundred twenty-two thousand, three hundred twenty".