1331415344 has 20 divisors (see below), whose sum is σ = 2948134224. Its totient is φ = 570606528.

The previous prime is 1331415287. The next prime is 1331415353. The reversal of 1331415344 is 4435141331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943707 + ... + 5943930.

Almost surely, 2^1331415344 is an apocalyptic number.

1331415344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1331415344 is an abundant number, since it is smaller than the sum of its proper divisors (1616718880).

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

1331415344 is a wasteful number, since it uses less digits than its factorization.

1331415344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11887652 (or 11887646 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 1331415344 is about 36488.5645648058. The cubic root of 1331415344 is about 1100.1144079350.

Adding to 1331415344 its reverse (4435141331), we get a palindrome (5766556675).

The spelling of 1331415344 in words is "one billion, three hundred thirty-one million, four hundred fifteen thousand, three hundred forty-four".