331441040 has 80 divisors (see below), whose sum is σ = 919012608. Its totient is φ = 108691968.

The previous prime is 331441031. The next prime is 331441069. The reversal of 331441040 is 40144133.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 14 + ... + 25746.

Almost surely, 2^331441040 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 331441040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459506304).

331441040 is an abundant number, since it is smaller than the sum of its proper divisors (587571568).

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

331441040 is a wasteful number, since it uses less digits than its factorization.

331441040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25776 (or 25770 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 331441040 is about 18205.5222391449. The cubic root of 331441040 is about 692.0467408036.

Adding to 331441040 its reverse (40144133), we get a palindrome (371585173).

The spelling of 331441040 in words is "three hundred thirty-one million, four hundred forty-one thousand, forty".