612418 has 4 divisors (see below), whose sum is σ = 918630. Its totient is φ = 306208.

The previous prime is 612407. The next prime is 612439. The reversal of 612418 is 814216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 284089 = 573^2 + 533^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153103 + ... + 153106.

2⁶¹²⁴¹⁸ is an apocalyptic number.

612418 is a deficient number, since it is larger than the sum of its proper divisors (306212).

612418 is a wasteful number, since it uses less digits than its factorization.

612418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306211.

The product of its digits is 384, while the sum is 22.

The square root of 612418 is about 782.5714024931. The cubic root of 612418 is about 84.9211725943.

The spelling of 612418 in words is "six hundred twelve thousand, four hundred eighteen".