2321504 has 12 divisors (see below), whose sum is σ = 4570524. Its totient is φ = 1160736.

The previous prime is 2321443. The next prime is 2321507. The reversal of 2321504 is 4051232.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36242 + ... + 36305.

It is an arithmetic number, because the mean of its divisors is an integer number (380877).

2^2321504 is an apocalyptic number.

It is an amenable number.

2321504 is a deficient number, since it is larger than the sum of its proper divisors (2249020).

2321504 is an equidigital number, since it uses as much as digits as its factorization.

2321504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72557 (or 72549 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2321504 is about 1523.6482533708. The cubic root of 2321504 is about 132.4107194918.

Adding to 2321504 its reverse (4051232), we get a palindrome (6372736).

The spelling of 2321504 in words is "two million, three hundred twenty-one thousand, five hundred four".