1331076340 has 24 divisors (see below), whose sum is σ = 3049375392. Its totient is φ = 484027680.

The previous prime is 1331076311. The next prime is 1331076347. The reversal of 1331076340 is 436701331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1331076299 and 1331076308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331076347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024954 + ... + 3025393.

It is an arithmetic number, because the mean of its divisors is an integer number (127057308).

Almost surely, 2^1331076340 is an apocalyptic number.

1331076340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331076340 is an abundant number, since it is smaller than the sum of its proper divisors (1718299052).

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

1331076340 is a wasteful number, since it uses less digits than its factorization.

1331076340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050367 (or 6050365 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 1331076340 is about 36483.9189232736. The cubic root of 1331076340 is about 1100.0210299010.

Adding to 1331076340 its reverse (436701331), we get a palindrome (1767777671).

The spelling of 1331076340 in words is "one billion, three hundred thirty-one million, seventy-six thousand, three hundred forty".