320421150 has 192 divisors, whose sum is σ = 1034933760. Its totient is φ = 71366400.

The previous prime is 320421133. The next prime is 320421161. The reversal of 320421150 is 51124023.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 387037 + ... + 387863.

It is an arithmetic number, because the mean of its divisors is an integer number (5390280).

Almost surely, 2^320421150 is an apocalyptic number.

320421150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320421150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517466880).

320421150 is an abundant number, since it is smaller than the sum of its proper divisors (714512610).

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

320421150 is a wasteful number, since it uses less digits than its factorization.

320421150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 320421150 is about 17900.3114498044. The cubic root of 320421150 is about 684.2903122830.

Adding to 320421150 its reverse (51124023), we get a palindrome (371545173).

The spelling of 320421150 in words is "three hundred twenty million, four hundred twenty-one thousand, one hundred fifty".