4198406 has 4 divisors (see below), whose sum is σ = 6297612. Its totient is φ = 2099202.

The previous prime is 4198379. The next prime is 4198409. The reversal of 4198406 is 6048914.

4198406 = 1023² + 1024² + ... + 1026².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6048914 = 2 ⋅3024457.

It is a super-2 number, since 2×4198406² = 35253225881672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049600 + ... + 1049603.

It is an arithmetic number, because the mean of its divisors is an integer number (1574403).

Almost surely, 2^4198406 is an apocalyptic number.

4198406 is a deficient number, since it is larger than the sum of its proper divisors (2099206).

4198406 is a wasteful number, since it uses less digits than its factorization.

4198406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099205.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4198406 is about 2049.0012201070. The cubic root of 4198406 is about 161.3224508669.

The spelling of 4198406 in words is "four million, one hundred ninety-eight thousand, four hundred six".