342407557 has 8 divisors (see below), whose sum is σ = 362793816. Its totient is φ = 322048512.

The previous prime is 342407539. The next prime is 342407561. The reversal of 342407557 is 755704243.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 188622756 + 153784801 = 13734^2 + 12401^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342407557 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 (342477557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22833 + ... + 34729.

It is an arithmetic number, because the mean of its divisors is an integer number (45349227).

Almost surely, 2^342407557 is an apocalyptic number.

It is an amenable number.

342407557 is a deficient number, since it is larger than the sum of its proper divisors (20386259).

342407557 is a wasteful number, since it uses less digits than its factorization.

342407557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13607.

The product of its (nonzero) digits is 117600, while the sum is 37.

The square root of 342407557 is about 18504.2578073264. The cubic root of 342407557 is about 699.5967452894.

The spelling of 342407557 in words is "three hundred forty-two million, four hundred seven thousand, five hundred fifty-seven".