331040420 has 24 divisors (see below), whose sum is σ = 731774400. Its totient is φ = 125446752.

The previous prime is 331040419. The next prime is 331040453. The reversal of 331040420 is 24040133.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435200 + ... + 435959.

It is an arithmetic number, because the mean of its divisors is an integer number (30490600).

Almost surely, 2^331040420 is an apocalyptic number.

It is an amenable number.

331040420 is an abundant number, since it is smaller than the sum of its proper divisors (400733980).

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

331040420 is a wasteful number, since it uses less digits than its factorization.

331040420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871187 (or 871185 counting only the distinct ones).

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

The square root of 331040420 is about 18194.5162068135. The cubic root of 331040420 is about 691.7677977317.

Adding to 331040420 its reverse (24040133), we get a palindrome (355080553).

The spelling of 331040420 in words is "three hundred thirty-one million, forty thousand, four hundred twenty".