1535643342 has 24 divisors (see below), whose sum is σ = 3434558400. Its totient is φ = 495368640.

The previous prime is 1535643331. The next prime is 1535643353. The reversal of 1535643342 is 2433465351.

1535643342 is a `hidden beast` number, since 1 + 5 + 3 + 5 + 643 + 3 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1535643331) and next prime (1535643353).

It is a junction number, because it is equal to n+sod(n) for n = 1535643297 and 1535643306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1375467 + ... + 1376582.

It is an arithmetic number, because the mean of its divisors is an integer number (143106600).

Almost surely, 2^1535643342 is an apocalyptic number.

1535643342 is an abundant number, since it is smaller than the sum of its proper divisors (1898915058).

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

1535643342 is a wasteful number, since it uses less digits than its factorization.

1535643342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752088 (or 2752085 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 1535643342 is about 39187.2854635276. The cubic root of 1535643342 is about 1153.7103455400.

The spelling of 1535643342 in words is "one billion, five hundred thirty-five million, six hundred forty-three thousand, three hundred forty-two".