612442172 has 12 divisors (see below), whose sum is σ = 1074322536. Its totient is φ = 305492880.

The previous prime is 612442157. The next prime is 612442177. The reversal of 612442172 is 271244216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612442177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180158 + ... + 183525.

It is an arithmetic number, because the mean of its divisors is an integer number (89526878).

Almost surely, 2^612442172 is an apocalyptic number.

It is an amenable number.

612442172 is a deficient number, since it is larger than the sum of its proper divisors (461880364).

612442172 is a wasteful number, since it uses less digits than its factorization.

612442172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364108 (or 364106 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 612442172 is about 24747.5690119252. The cubic root of 612442172 is about 849.2228985274. Note that the first 3 decimals are identical.

Adding to 612442172 its reverse (271244216), we get a palindrome (883686388).

The spelling of 612442172 in words is "six hundred twelve million, four hundred forty-two thousand, one hundred seventy-two".