712189242 has 12 divisors (see below), whose sum is σ = 1543076730. Its totient is φ = 237396408.

The previous prime is 712189223. The next prime is 712189243. The reversal of 712189242 is 242981217.

712189242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 419471361 + 292717881 = 20481^2 + 17109^2 .

It is a junction number, because it is equal to n+sod(n) for n = 712189197 and 712189206.

It is not an unprimeable number, because it can be changed into a prime (712189243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19783017 + ... + 19783052.

Almost surely, 2^712189242 is an apocalyptic number.

712189242 is an abundant number, since it is smaller than the sum of its proper divisors (830887488).

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

712189242 is a wasteful number, since it uses less digits than its factorization.

712189242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39566077 (or 39566074 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 712189242 is about 26686.8739645542. The cubic root of 712189242 is about 893.0281242148.

The spelling of 712189242 in words is "seven hundred twelve million, one hundred eighty-nine thousand, two hundred forty-two".