331412332440 has 128 divisors (see below), whose sum is σ = 1144565199360. Its totient is φ = 75198434304.

The previous prime is 331412332393. The next prime is 331412332463. The reversal of 331412332440 is 44233214133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 331412332398 and 331412332407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1324842 + ... + 1555001.

It is an arithmetic number, because the mean of its divisors is an integer number (8941915620).

Almost surely, 2^331412332440 is an apocalyptic number.

331412332440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331412332440 is an abundant number, since it is smaller than the sum of its proper divisors (813152866920).

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

331412332440 is a wasteful number, since it uses less digits than its factorization.

331412332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880001 (or 2879997 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 331412332440 its reverse (44233214133), we get a palindrome (375645546573).

The spelling of 331412332440 in words is "three hundred thirty-one billion, four hundred twelve million, three hundred thirty-two thousand, four hundred forty".