2051198 has 8 divisors (see below), whose sum is σ = 3100680. Its totient is φ = 1017640.

The previous prime is 2051191. The next prime is 2051219. The reversal of 2051198 is 8911502.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051191) 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, 3653 + ... + 4176.

It is an arithmetic number, because the mean of its divisors is an integer number (387585).

2^2051198 is an apocalyptic number.

2051198 is a deficient number, since it is larger than the sum of its proper divisors (1049482).

2051198 is a wasteful number, since it uses less digits than its factorization.

2051198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2051198 is about 1432.2004049713. The cubic root of 2051198 is about 127.0581501534.

The spelling of 2051198 in words is "two million, fifty-one thousand, one hundred ninety-eight".