2351304 has 72 divisors (see below), whose sum is σ = 6824610. Its totient is φ = 731136.

The previous prime is 2351303. The next prime is 2351317. The reversal of 2351304 is 4031532.

It can be written as a sum of positive squares in 3 ways, for example, as 1954404 + 396900 = 1398^2 + 630^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2351303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20752 + ... + 20864.

2^2351304 is an apocalyptic number.

2351304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2351304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3412305).

2351304 is an abundant number, since it is smaller than the sum of its proper divisors (4473306).

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

2351304 is a wasteful number, since it uses less digits than its factorization.

2351304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2351304 is about 1533.3962305940. The cubic root of 2351304 is about 132.9748760654.

Adding to 2351304 its reverse (4031532), we get a palindrome (6382836).

The spelling of 2351304 in words is "two million, three hundred fifty-one thousand, three hundred four".