4531604 has 24 divisors (see below), whose sum is σ = 9887808. Its totient is φ = 1765440.

The previous prime is 4531603. The next prime is 4531609. The reversal of 4531604 is 4061354.

4531604 = 182² + 183² + ... + 269².

It is a happy number.

4531604 is nontrivially palindromic in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 4531604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7049 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (411992).

Almost surely, 2^4531604 is an apocalyptic number.

4531604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4531604 is an abundant number, since it is smaller than the sum of its proper divisors (5356204).

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

4531604 is a wasteful number, since it uses less digits than its factorization.

4531604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14735 (or 14733 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 4531604 is about 2128.7564444999. The cubic root of 4531604 is about 165.4819578547.

Adding to 4531604 its reverse (4061354), we get a palindrome (8592958).

The spelling of 4531604 in words is "four million, five hundred thirty-one thousand, six hundred four".