612224 has 16 divisors (see below), whose sum is σ = 1219920. Its totient is φ = 306048.

The previous prime is 612223. The next prime is 612229. The reversal of 612224 is 422216.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2264 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (76245).

2⁶¹²²²⁴ is an apocalyptic number.

612224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

612224 is a deficient number, since it is larger than the sum of its proper divisors (607696).

612224 is an equidigital number, since it uses as much as digits as its factorization.

612224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797 (or 4785 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 612224 is about 782.4474423244. The cubic root of 612224 is about 84.9122046196.

The spelling of 612224 in words is "six hundred twelve thousand, two hundred twenty-four".