342505757 has 8 divisors (see below), whose sum is σ = 375709152. Its totient is φ = 309646800.

The previous prime is 342505741. The next prime is 342505829. The reversal of 342505757 is 757505243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342505757 - 2⁴ = 342505741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342505757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342505717) 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, 84023 + ... + 88004.

It is an arithmetic number, because the mean of its divisors is an integer number (46963644).

Almost surely, 2^342505757 is an apocalyptic number.

It is an amenable number.

342505757 is a deficient number, since it is larger than the sum of its proper divisors (33203395).

342505757 is a wasteful number, since it uses less digits than its factorization.

342505757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172219.

The product of its (nonzero) digits is 147000, while the sum is 38.

The square root of 342505757 is about 18506.9110604660. The cubic root of 342505757 is about 699.6636186517.

The spelling of 342505757 in words is "three hundred forty-two million, five hundred five thousand, seven hundred fifty-seven".