4004512 has 12 divisors (see below), whose sum is σ = 7883946. Its totient is φ = 2002240.

The previous prime is 4004509. The next prime is 4004513. The reversal of 4004512 is 2154004.

It can be written as a sum of positive squares in only one way, i.e., 3370896 + 633616 = 1836^2 + 796^2 .

It is a super-2 number, since 2×4004512² = 32072232716288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4004513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62539 + ... + 62602.

Almost surely, 2^4004512 is an apocalyptic number.

It is an amenable number.

4004512 is a deficient number, since it is larger than the sum of its proper divisors (3879434).

4004512 is a wasteful number, since it uses less digits than its factorization.

4004512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125151 (or 125143 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4004512 is about 2001.1276820833. The cubic root of 4004512 is about 158.7997690484.

Adding to 4004512 its reverse (2154004), we get a palindrome (6158516).

The spelling of 4004512 in words is "four million, four thousand, five hundred twelve".