1331550342 has 24 divisors (see below), whose sum is σ = 2891705544. Its totient is φ = 442822464.

The previous prime is 1331550301. The next prime is 1331550377. The reversal of 1331550342 is 2430551331.

1331550342 is a `hidden beast` number, since 1 + 3 + 315 + 5 + 0 + 342 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77628 + ... + 93215.

It is an arithmetic number, because the mean of its divisors is an integer number (120487731).

Almost surely, 2^1331550342 is an apocalyptic number.

1331550342 is an abundant number, since it is smaller than the sum of its proper divisors (1560155202).

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

1331550342 is a wasteful number, since it uses less digits than its factorization.

1331550342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171284 (or 171281 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1331550342 is about 36490.4143851505. The cubic root of 1331550342 is about 1100.1515884754.

The spelling of 1331550342 in words is "one billion, three hundred thirty-one million, five hundred fifty thousand, three hundred forty-two".