612630 has 32 divisors (see below), whose sum is σ = 1634400. Its totient is φ = 163296.

The previous prime is 612613. The next prime is 612637. The reversal of 612630 is 36216.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 865 + ... + 1404.

It is an arithmetic number, because the mean of its divisors is an integer number (51075).

2⁶¹²⁶³⁰ is an apocalyptic number.

612630 is an abundant number, since it is smaller than the sum of its proper divisors (1021770).

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

612630 is a wasteful number, since it uses less digits than its factorization.

612630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 612630 is about 782.7068416719. The cubic root of 612630 is about 84.9309704837.

Adding to 612630 its reverse (36216), we get a palindrome (648846).

The spelling of 612630 in words is "six hundred twelve thousand, six hundred thirty".