4013394 has 96 divisors (see below), whose sum is σ = 10933056. Its totient is φ = 967680.

The previous prime is 4013369. The next prime is 4013407. The reversal of 4013394 is 4933104.

It is a super-2 number, since 2×4013394² = 32214662798472, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54942 + ... + 55014.

It is an arithmetic number, because the mean of its divisors is an integer number (113886).

Almost surely, 2^4013394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4013394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5466528).

4013394 is an abundant number, since it is smaller than the sum of its proper divisors (6919662).

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

4013394 is a wasteful number, since it uses less digits than its factorization.

4013394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 4013394 is about 2003.3457015703. The cubic root of 4013394 is about 158.9170882151.

Adding to 4013394 its reverse (4933104), we get a palindrome (8946498).

The spelling of 4013394 in words is "four million, thirteen thousand, three hundred ninety-four".