342981998 has 4 divisors (see below), whose sum is σ = 514473000. Its totient is φ = 171490998.

The previous prime is 342981997. The next prime is 342982001. The reversal of 342981998 is 899189243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899189243 = 673 ⋅1336091.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342981997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85745498 + ... + 85745501.

It is an arithmetic number, because the mean of its divisors is an integer number (128618250).

Almost surely, 2^342981998 is an apocalyptic number.

342981998 is a deficient number, since it is larger than the sum of its proper divisors (171491002).

342981998 is a wasteful number, since it uses less digits than its factorization.

342981998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171491001.

The product of its digits is 1119744, while the sum is 53.

The square root of 342981998 is about 18519.7731627577. The cubic root of 342981998 is about 699.9877535272.

The spelling of 342981998 in words is "three hundred forty-two million, nine hundred eighty-one thousand, nine hundred ninety-eight".