2120304 has 40 divisors (see below), whose sum is σ = 5531392. Its totient is φ = 699840.

The previous prime is 2120303. The next prime is 2120309. The reversal of 2120304 is 4030212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2120304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120303) 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, 7689 + ... + 7959.

2^2120304 is an apocalyptic number.

2120304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2120304 is an abundant number, since it is smaller than the sum of its proper divisors (3411088).

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

2120304 is a wasteful number, since it uses less digits than its factorization.

2120304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2120304 is about 1456.1263681425. The cubic root of 2120304 is about 128.4693058555.

Adding to 2120304 its reverse (4030212), we get a palindrome (6150516).

The spelling of 2120304 in words is "two million, one hundred twenty thousand, three hundred four".