2720198 has 8 divisors (see below), whose sum is σ = 4394208. Its totient is φ = 1255464.

The previous prime is 2720197. The next prime is 2720239. The reversal of 2720198 is 8910272.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2720198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720191) 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, 52286 + ... + 52337.

It is an arithmetic number, because the mean of its divisors is an integer number (549276).

2^2720198 is an apocalyptic number.

2720198 is a deficient number, since it is larger than the sum of its proper divisors (1674010).

2720198 is a wasteful number, since it uses less digits than its factorization.

2720198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104638.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2720198 is about 1649.3022767219. The cubic root of 2720198 is about 139.5940279818.

The spelling of 2720198 in words is "two million, seven hundred twenty thousand, one hundred ninety-eight".