1331411440 has 60 divisors (see below), whose sum is σ = 3288389976. Its totient is φ = 501228544.

The previous prime is 1331411429. The next prime is 1331411443. The reversal of 1331411440 is 441141331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331411443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5674 + ... + 51913.

Almost surely, 2^1331411440 is an apocalyptic number.

1331411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331411440 is an abundant number, since it is smaller than the sum of its proper divisors (1956978536).

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

1331411440 is a wasteful number, since it uses less digits than its factorization.

1331411440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57634 (or 57611 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1331411440 is about 36488.5110685542. The cubic root of 1331411440 is about 1100.1133326756.

Adding to 1331411440 its reverse (441141331), we get a palindrome (1772552771).

The spelling of 1331411440 in words is "one billion, three hundred thirty-one million, four hundred eleven thousand, four hundred forty".