2198031 has 16 divisors (see below), whose sum is σ = 3273600. Its totient is φ = 1300320.

The previous prime is 2198029. The next prime is 2198039. The reversal of 2198031 is 1308912.

2198031 = T₂₉₈ + T₂₉₉ + ... + T₃₄₀.

It is not a de Polignac number, because 2198031 - 2¹ = 2198029 is a prime.

It is a super-2 number, since 2×2198031² = 9662680553922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2197992 and 2198010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (204600).

2^2198031 is an apocalyptic number.

2198031 is a deficient number, since it is larger than the sum of its proper divisors (1075569).

2198031 is a wasteful number, since it uses less digits than its factorization.

2198031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2198031 is about 1482.5757990740. The cubic root of 2198031 is about 130.0203321256.

The spelling of 2198031 in words is "two million, one hundred ninety-eight thousand, thirty-one".