4002194 has 8 divisors (see below), whose sum is σ = 6860928. Its totient is φ = 1715220.

The previous prime is 4002169. The next prime is 4002197. The reversal of 4002194 is 4912004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4002197) 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, 142922 + ... + 142949.

It is an arithmetic number, because the mean of its divisors is an integer number (857616).

Almost surely, 2^4002194 is an apocalyptic number.

4002194 is a deficient number, since it is larger than the sum of its proper divisors (2858734).

4002194 is a wasteful number, since it uses less digits than its factorization.

4002194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285880.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4002194 is about 2000.5484248076. The cubic root of 4002194 is about 158.7691228746.

Adding to 4002194 its reverse (4912004), we get a palindrome (8914198).

The spelling of 4002194 in words is "four million, two thousand, one hundred ninety-four".