340215221998 has 8 divisors (see below), whose sum is σ = 515092205592. Its totient is φ = 168517820136.

The previous prime is 340215221993. The next prime is 340215222007. The reversal of 340215221998 is 899122512043.

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

It is a super-2 number, since 2×340215221998² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340215221993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794895165 + ... + 794895592.

It is an arithmetic number, because the mean of its divisors is an integer number (64386525699).

Almost surely, 2^340215221998 is an apocalyptic number.

340215221998 is a deficient number, since it is larger than the sum of its proper divisors (174876983594).

340215221998 is a wasteful number, since it uses less digits than its factorization.

340215221998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589790866.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 340215221998 in words is "three hundred forty billion, two hundred fifteen million, two hundred twenty-one thousand, nine hundred ninety-eight".