4209894 has 40 divisors (see below), whose sum is σ = 10164000. Its totient is φ = 1294704.

The previous prime is 4209889. The next prime is 4209899. The reversal of 4209894 is 4989024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4209889) and next prime (4209899).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 1107 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (254100).

Almost surely, 2^4209894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4209894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5082000).

4209894 is an abundant number, since it is smaller than the sum of its proper divisors (5954106).

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

4209894 is a wasteful number, since it uses less digits than its factorization.

4209894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4209894 is about 2051.8026220862. The cubic root of 4209894 is about 161.4694578123.

The spelling of 4209894 in words is "four million, two hundred nine thousand, eight hundred ninety-four".