612304 has 60 divisors (see below), whose sum is σ = 1526688. Its totient is φ = 235200.

The previous prime is 612301. The next prime is 612307. The reversal of 612304 is 403216.

612304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (612301) and next prime (612307).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8589 + ... + 8659.

2⁶¹²³⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763344).

612304 is an abundant number, since it is smaller than the sum of its proper divisors (914384).

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

612304 is a wasteful number, since it uses less digits than its factorization.

612304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 612304 is about 782.4985622990. The cubic root of 612304 is about 84.9159029830.

The spelling of 612304 in words is "six hundred twelve thousand, three hundred four".