342002557 has 8 divisors (see below), whose sum is σ = 368630136. Its totient is φ = 315420672.

The previous prime is 342002543. The next prime is 342002561. The reversal of 342002557 is 755200243.

It can be written as a sum of positive squares in 4 ways, for example, as 1267876 + 340734681 = 1126^2 + 18459^2 .

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 342002557 - 2²³ = 333613949 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 (342002537) 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, 5013 + ... + 26629.

It is an arithmetic number, because the mean of its divisors is an integer number (46078767).

Almost surely, 2^342002557 is an apocalyptic number.

It is an amenable number.

342002557 is a deficient number, since it is larger than the sum of its proper divisors (26627579).

342002557 is a wasteful number, since it uses less digits than its factorization.

342002557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22847.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 342002557 is about 18493.3111421400. The cubic root of 342002557 is about 699.3208085586.

The spelling of 342002557 in words is "three hundred forty-two million, two thousand, five hundred fifty-seven".