331150720 has 128 divisors (see below), whose sum is σ = 823996800. Its totient is φ = 127180800.

The previous prime is 331150709. The next prime is 331150723. The reversal of 331150720 is 27051133.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 331150691 and 331150700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331150723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3038026 + ... + 3038134.

It is an arithmetic number, because the mean of its divisors is an integer number (6437475).

Almost surely, 2^331150720 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 331150720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411998400).

331150720 is an abundant number, since it is smaller than the sum of its proper divisors (492846080).

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

331150720 is a wasteful number, since it uses less digits than its factorization.

331150720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 331150720 is about 18197.5470874511. The cubic root of 331150720 is about 691.8446196852.

The spelling of 331150720 in words is "three hundred thirty-one million, one hundred fifty thousand, seven hundred twenty".