2921304 has 16 divisors (see below), whose sum is σ = 7303320. Its totient is φ = 973760.

The previous prime is 2921293. The next prime is 2921327. The reversal of 2921304 is 4031292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60837 + ... + 60884.

2^2921304 is an apocalyptic number.

2921304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2921304 is an abundant number, since it is smaller than the sum of its proper divisors (4382016).

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

2921304 is a wasteful number, since it uses less digits than its factorization.

2921304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121730 (or 121726 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2921304 is about 1709.1822606147. The cubic root of 2921304 is about 142.9526633547.

Adding to 2921304 its reverse (4031292), we get a palindrome (6952596).

It can be divided in two parts, 292 and 1304, that added together give a triangular number (1596 = T₅₆).

The spelling of 2921304 in words is "two million, nine hundred twenty-one thousand, three hundred four".