331343040 has 112 divisors (see below), whose sum is σ = 1202326272. Its totient is φ = 75734016.

The previous prime is 331343027. The next prime is 331343059. The reversal of 331343040 is 40343133.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 331342998 and 331343016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17934 + ... + 31373.

It is an arithmetic number, because the mean of its divisors is an integer number (10735056).

Almost surely, 2^331343040 is an apocalyptic number.

331343040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331343040 is an abundant number, since it is smaller than the sum of its proper divisors (870983232).

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

331343040 is a wasteful number, since it uses less digits than its factorization.

331343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49334 (or 49324 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 331343040 is about 18202.8305491207. The cubic root of 331343040 is about 691.9785262919.

Adding to 331343040 its reverse (40343133), we get a palindrome (371686173).

The spelling of 331343040 in words is "three hundred thirty-one million, three hundred forty-three thousand, forty".