331428343 has 8 divisors (see below), whose sum is σ = 352074800. Its totient is φ = 311102208.

The previous prime is 331428341. The next prime is 331428373. The reversal of 331428343 is 343824133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331428343 - 2¹ = 331428341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331428341) 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, 77946 + ... + 82087.

It is an arithmetic number, because the mean of its divisors is an integer number (44009350).

Almost surely, 2^331428343 is an apocalyptic number.

331428343 is a deficient number, since it is larger than the sum of its proper divisors (20646457).

331428343 is a wasteful number, since it uses less digits than its factorization.

331428343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160161.

The product of its digits is 20736, while the sum is 31.

The square root of 331428343 is about 18205.1735229302. The cubic root of 331428343 is about 692.0379036062.

The spelling of 331428343 in words is "three hundred thirty-one million, four hundred twenty-eight thousand, three hundred forty-three".