4004045 has 8 divisors (see below), whose sum is σ = 4872960. Its totient is φ = 3157840.

The previous prime is 4004023. The next prime is 4004057. The reversal of 4004045 is 5404004.

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

It is not a de Polignac number, because 4004045 - 2⁶ = 4003981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285 + ... + 5994.

It is an arithmetic number, because the mean of its divisors is an integer number (609120).

Almost surely, 2^4004045 is an apocalyptic number.

It is an amenable number.

4004045 is a deficient number, since it is larger than the sum of its proper divisors (868915).

4004045 is a wasteful number, since it uses less digits than its factorization.

4004045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4004045 is about 2001.0109944725. The cubic root of 4004045 is about 158.7935958139.

Adding to 4004045 its reverse (5404004), we get a palindrome (9408049).

The spelling of 4004045 in words is "four million, four thousand, forty-five".