342745729402 has 4 divisors (see below), whose sum is σ = 514118594106. Its totient is φ = 171372864700.

The previous prime is 342745729393. The next prime is 342745729439. The reversal of 342745729402 is 204927547243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204927547243 = 1021 ⋅200712583.

It can be written as a sum of positive squares in only one way, i.e., 243412970161 + 99332759241 = 493369^2 + 315171^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85686432349 + ... + 85686432352.

Almost surely, 2^342745729402 is an apocalyptic number.

342745729402 is a deficient number, since it is larger than the sum of its proper divisors (171372864704).

342745729402 is a wasteful number, since it uses less digits than its factorization.

342745729402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171372864703.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 342745729402 in words is "three hundred forty-two billion, seven hundred forty-five million, seven hundred twenty-nine thousand, four hundred two".