4209898 has 16 divisors (see below), whose sum is σ = 7873344. Its totient is φ = 1640160.

The previous prime is 4209889. The next prime is 4209899. The reversal of 4209898 is 8989024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4209898.

It is not an unprimeable number, because it can be changed into a prime (4209899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13515 + ... + 13822.

It is an arithmetic number, because the mean of its divisors is an integer number (492084).

Almost surely, 2^4209898 is an apocalyptic number.

4209898 is a deficient number, since it is larger than the sum of its proper divisors (3663446).

4209898 is a wasteful number, since it uses less digits than its factorization.

4209898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27357.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 4209898 is about 2051.8035968386. The cubic root of 4209898 is about 161.4695089520.

It can be divided in two parts, 4 and 209898, that added together give a palindrome (209902).

The spelling of 4209898 in words is "four million, two hundred nine thousand, eight hundred ninety-eight".