4209426 has 24 divisors (see below), whose sum is σ = 9822540. Its totient is φ = 1295136.

The previous prime is 4209407. The next prime is 4209451. The reversal of 4209426 is 6249024.

It can be written as a sum of positive squares in 2 ways, for example, as 4198401 + 11025 = 2049^2 + 105^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4209426.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8761 + ... + 9228.

Almost surely, 2^4209426 is an apocalyptic number.

4209426 is an abundant number, since it is smaller than the sum of its proper divisors (5613114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4209426 is a wasteful number, since it uses less digits than its factorization.

4209426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010 (or 18007 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4209426 is about 2051.6885728590. The cubic root of 4209426 is about 161.4634742486.

The spelling of 4209426 in words is "four million, two hundred nine thousand, four hundred twenty-six".