4540004 has 12 divisors (see below), whose sum is σ = 9080064. Its totient is φ = 1945704.

The previous prime is 4539989. The next prime is 4540007. The reversal of 4540004 is 4000454.

4540004 is an admirable number.

It is a super-2 number, since 2×4540004² = 41223272640032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4540007) 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, 81044 + ... + 81099.

It is an arithmetic number, because the mean of its divisors is an integer number (756672).

Almost surely, 2^4540004 is an apocalyptic number.

It is an amenable number.

4540004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4540004 is a wasteful number, since it uses less digits than its factorization.

4540004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162154 (or 162152 counting only the distinct ones).

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

The square root of 4540004 is about 2130.7285139126. The cubic root of 4540004 is about 165.5841431914.

Adding to 4540004 its reverse (4000454), we get a palindrome (8540458).

The spelling of 4540004 in words is "four million, five hundred forty thousand, four".