2861304 has 32 divisors (see below), whose sum is σ = 7575120. Its totient is φ = 897536.

The previous prime is 2861303. The next prime is 2861317. The reversal of 2861304 is 4031682.

It is a happy number.

It is a hoax number, since the sum of its digits (24) 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 (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861303) 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, 3099 + ... + 3914.

2^2861304 is an apocalyptic number.

2861304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2861304 is an abundant number, since it is smaller than the sum of its proper divisors (4713816).

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

2861304 is a wasteful number, since it uses less digits than its factorization.

2861304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039 (or 7035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2861304 is about 1691.5389442753. The cubic root of 2861304 is about 141.9671946965.

Adding to 2861304 its reverse (4031682), we get a palindrome (6892986).

The spelling of 2861304 in words is "two million, eight hundred sixty-one thousand, three hundred four".