342215998 has 4 divisors (see below), whose sum is σ = 513324000. Its totient is φ = 171107998.

The previous prime is 342215987. The next prime is 342216029. The reversal of 342215998 is 899512243.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×342215998² = 234223578574272008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85553998 + ... + 85554001.

It is an arithmetic number, because the mean of its divisors is an integer number (128331000).

Almost surely, 2^342215998 is an apocalyptic number.

342215998 is a deficient number, since it is larger than the sum of its proper divisors (171108002).

342215998 is a wasteful number, since it uses less digits than its factorization.

342215998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171108001.

The product of its digits is 155520, while the sum is 43.

The square root of 342215998 is about 18499.0810042013. The cubic root of 342215998 is about 699.4662584381.

The spelling of 342215998 in words is "three hundred forty-two million, two hundred fifteen thousand, nine hundred ninety-eight".