426199 has 4 divisors (see below), whose sum is σ = 428760. Its totient is φ = 423640.

The previous prime is 426197. The next prime is 426211. The reversal of 426199 is 991624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426199 - 2¹ = 426197 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426193) 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, 1012 + ... + 1369.

It is an arithmetic number, because the mean of its divisors is an integer number (107190).

2⁴²⁶¹⁹⁹ is an apocalyptic number.

426199 is a deficient number, since it is larger than the sum of its proper divisors (2561).

426199 is a wasteful number, since it uses less digits than its factorization.

426199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its digits is 3888, while the sum is 31.

The square root of 426199 is about 652.8391838730. The cubic root of 426199 is about 75.2553665558.

It can be divided in two parts, 426 and 199, that added together give a 4-th power (625 = 5⁴).

The spelling of 426199 in words is "four hundred twenty-six thousand, one hundred ninety-nine".