4004051 has 4 divisors (see below), whose sum is σ = 4026600. Its totient is φ = 3981504.

The previous prime is 4004023. The next prime is 4004057. The reversal of 4004051 is 1504004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4004051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4004057) 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, 11006 + ... + 11363.

It is an arithmetic number, because the mean of its divisors is an integer number (1006650).

Almost surely, 2^4004051 is an apocalyptic number.

4004051 is a deficient number, since it is larger than the sum of its proper divisors (22549).

4004051 is a wasteful number, since it uses less digits than its factorization.

4004051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22548.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4004051 is about 2001.0124937141. The cubic root of 4004051 is about 158.7936751304.

Adding to 4004051 its reverse (1504004), we get a palindrome (5508055).

The spelling of 4004051 in words is "four million, four thousand, fifty-one".