342785533 has 4 divisors (see below), whose sum is σ = 342828288. Its totient is φ = 342742780.

The previous prime is 342785519. The next prime is 342785557. The reversal of 342785533 is 335587243.

It is the 7559-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 335587243 = 2311 ⋅145213.

It is a cyclic number.

It is not a de Polignac number, because 342785533 - 2⁹ = 342785021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342788533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5341 + ... + 26722.

It is an arithmetic number, because the mean of its divisors is an integer number (85707072).

Almost surely, 2^342785533 is an apocalyptic number.

It is an amenable number.

342785533 is a deficient number, since it is larger than the sum of its proper divisors (42755).

342785533 is a wasteful number, since it uses less digits than its factorization.

342785533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42754.

The product of its digits is 302400, while the sum is 40.

The square root of 342785533 is about 18514.4682073237. The cubic root of 342785533 is about 699.8540736630.

The spelling of 342785533 in words is "three hundred forty-two million, seven hundred eighty-five thousand, five hundred thirty-three".