4198402 has 16 divisors (see below), whose sum is σ = 6846840. Its totient is φ = 1919232.

The previous prime is 4198379. The next prime is 4198409. The reversal of 4198402 is 2048914.

It is a Cunningham number, because it is equal to 2049²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 622521 + 3575881 = 789^2 + 1891^2 .

It is not an unprimeable number, because it can be changed into a prime (4198409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224 + ... + 3652.

Almost surely, 2^4198402 is an apocalyptic number.

4198402 is a deficient number, since it is larger than the sum of its proper divisors (2648438).

4198402 is a wasteful number, since it uses less digits than its factorization.

4198402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4198402 is about 2049.0002440215. Note that the first 3 decimals coincide. The cubic root of 4198402 is about 161.3223996339.

The spelling of 4198402 in words is "four million, one hundred ninety-eight thousand, four hundred two".