1331342436 has 96 divisors (see below), whose sum is σ = 3294910080. Its totient is φ = 417844224.

The previous prime is 1331342429. The next prime is 1331342443. The reversal of 1331342436 is 6342431331.

It is an interprime number because it is at equal distance from previous prime (1331342429) and next prime (1331342443).

It is a nude number because it is divisible by every one of its digits.

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, 2615350 + ... + 2615858.

It is an arithmetic number, because the mean of its divisors is an integer number (34321980).

Almost surely, 2^1331342436 is an apocalyptic number.

It is an amenable number.

1331342436 is an abundant number, since it is smaller than the sum of its proper divisors (1963567644).

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

1331342436 is a wasteful number, since it uses less digits than its factorization.

1331342436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 731 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 1331342436 is about 36487.5654983996. The cubic root of 1331342436 is about 1100.0943268973.

Adding to 1331342436 its reverse (6342431331), we get a palindrome (7673773767).

The spelling of 1331342436 in words is "one billion, three hundred thirty-one million, three hundred forty-two thousand, four hundred thirty-six".